Enhance README with internationalization details and update release script output formatting

- Added information about full internationalization support for German and English in the README, including language detection and switching features.
- Improved clarity in the README by specifying language options and providing tips for users.
- Updated the release script to standardize output formatting for informational, success, warning, and error messages, enhancing readability and consistency.

These changes improve user guidance and streamline the release process.

Author: Firstp1ck

README.md

@@ -30,6 +30,7 @@ A modern budget planning application with monthly overview, tax calculation, and
   - Expense breakdown by type
 - ✅ **Actual balance tracking** - Record and compare actual vs planned balances
 - ✅ **Budget import/export** - Import and export budgets as JSON files
+- ✅ **Internationalization (i18n)** - Full support for multiple languages (German, English) with automatic detection and language switcher
 - ✅ **Dark mode** - Full dark mode support for comfortable viewing
 - ✅ **Desktop app** - Native desktop application for Windows, Linux, and macOS (via Tauri)
 
@@ -95,15 +96,17 @@ To install dependencies without starting the servers:
 
 ## Getting Started
 
+> **Tip**: You can change the application language at any time using the language selector in the header. The application supports German and English.
+
 ### 1. Create a New Budget
 
-- Click on "Create New Budget" (or "Neues Budget erstellen")
+- Click on "Create New Budget" (or "Neues Budget erstellen" in German)
 - Enter a name and select the year
 - The budget will be created with CHF as the default currency
 
 ### 2. Add Categories
 
-- Click on "+ Add Category" (or "+ Kategorie hinzufügen")
+- Click on "+ Add Category" (or "+ Kategorie hinzufügen" in German)
 - Choose the category type:
   - **Income**: Money coming in (e.g., Salary)
   - **Fixed Expense**: Regular fixed costs (e.g., Rent, Insurance)
@@ -200,25 +203,18 @@ The application is available as a native desktop app for Windows, Linux, and mac
 
 The application supports multiple currencies with automatic conversion:
 
-- **Base Currency**: CHF (Swiss Francs) - all data is stored in CHF
-- **Display Currencies**: CHF, EUR, USD
-- **Exchange Rates**: Automatically fetched from [exchangerate-api.com](https://www.exchangerate-api.com/)
-- **Caching**: Exchange rates are cached in localStorage and refreshed daily
+- **Supported Currencies**: CHF (Swiss Francs), EUR (Euros), USD (US Dollars)
+- **Exchange Rates**: Automatically updated daily
+- **Data Storage**: All amounts are stored in CHF and converted for display
 
 ## Supported Languages
 
-The application currently supports the following languages:
-
-- **German (Deutsch)** - Primary language
-  - Full UI translation
-  - Default language for the application
-  - Locale: `de-DE`
+The application supports multiple languages:
 
-- **English** - Partial support
-  - Some tooltips and accessibility labels
-  - Documentation and README
+- **German (Deutsch)** 🇩🇪
+- **English** 🇺🇸
 
-The user interface is primarily in German, with the backend configured to use German (`de-DE`) as the default locale. English translations are available for some interface elements such as tooltips and aria-labels.
+The application automatically detects your browser's language preference. You can change the language anytime using the language selector in the header. Your language preference is saved and remembered for future sessions.
 
 ## Contributing
 

release.ps1

@@ -14,29 +14,29 @@ $ErrorActionPreference = "Stop"
 # Colors for output (PowerShell 5.1+ compatible)
 function Write-Info {
     param([string]$Message)
-    Write-Host "ℹ $Message" -ForegroundColor Cyan
+    Write-Host "[i] $Message" -ForegroundColor Cyan
 }
 
 function Write-Success {
     param([string]$Message)
-    Write-Host "✓ $Message" -ForegroundColor Green
+    Write-Host "[+] $Message" -ForegroundColor Green
 }
 
-function Write-Warning {
+function Write-Warn {
     param([string]$Message)
-    Write-Host "⚠ $Message" -ForegroundColor Yellow
+    Write-Host "[!] $Message" -ForegroundColor Yellow
 }
 
-function Write-Error {
+function Write-Err {
     param([string]$Message)
-    Write-Host "✗ $Message" -ForegroundColor Red
+    Write-Host "[x] $Message" -ForegroundColor Red
 }
 
 # Check for required tools
 Write-Info "Checking for required tools..."
 
 if (-not (Get-Command "git" -ErrorAction SilentlyContinue)) {
-    Write-Error "git is not installed. Please install it first."
+    Write-Err "git is not installed. Please install it first."
     exit 1
 }
 Write-Success "git is installed"
@@ -47,14 +47,14 @@ if (Get-Command "gh" -ErrorAction SilentlyContinue) {
     $GhAvailable = $true
     Write-Success "GitHub CLI (gh) is installed"
 } else {
-    Write-Warning "GitHub CLI (gh) is not installed (optional, but recommended for release management)"
-    Write-Warning "Install it from: https://cli.github.com/"
+    Write-Warn "GitHub CLI (gh) is not installed (optional, but recommended for release management)"
+    Write-Warn "Install it from: https://cli.github.com/"
 }
 
 # Validate version format (should be vX.X.X)
 $VersionPattern = '^v\d+\.\d+\.\d+$'
 if ($Version -notmatch $VersionPattern) {
-    Write-Error "Invalid version format: $Version"
+    Write-Err "Invalid version format: $Version"
     Write-Host "Version should be in format: vX.X.X"
     Write-Host "Examples: v1.0.0, v1.2.3, v2.0.0"
     exit 1
@@ -66,7 +66,7 @@ Write-Success "Version format is valid: $Version"
 try {
     $null = git rev-parse --git-dir 2>&1
 } catch {
-    Write-Error "Not in a git repository"
+    Write-Err "Not in a git repository"
     exit 1
 }
 
@@ -77,7 +77,7 @@ if ($StatusOutput) {
     # Filter out untracked files (lines starting with ??)
     $TrackedChanges = $StatusOutput | Where-Object { $_ -notmatch '^\?\?' }
     if ($TrackedChanges) {
-        Write-Warning "You have uncommitted changes in tracked files"
+        Write-Warn "You have uncommitted changes in tracked files"
         $Response = Read-Host "Do you want to continue anyway? (y/N)"
         if ($Response -notmatch '^[Yy]$') {
             Write-Info "Release cancelled"
@@ -90,7 +90,7 @@ if ($StatusOutput) {
 try {
     $null = git remote get-url origin 2>&1
 } catch {
-    Write-Error "No remote 'origin' configured"
+    Write-Err "No remote 'origin' configured"
     exit 1
 }
 
@@ -108,7 +108,7 @@ if ($GhAvailable -and $RepoName) {
     try {
         $null = gh release view "$Version" --repo "$RepoName" 2>&1
         $ReleaseExists = $true
-        Write-Warning "Release $Version already exists on GitHub"
+        Write-Warn "Release $Version already exists on GitHub"
     } catch {
         Write-Info "Release $Version does not exist on GitHub"
     }
@@ -137,10 +137,10 @@ try {
 # If release or tag exists, delete them
 if ($ReleaseExists -or $TagExistsLocal -or $TagExistsRemote) {
     if ($ReleaseExists) {
-        Write-Warning "Release $Version will be deleted and recreated"
+        Write-Warn "Release $Version will be deleted and recreated"
     }
     if ($TagExistsLocal -or $TagExistsRemote) {
-        Write-Warning "Tag $Version will be deleted and recreated"
+        Write-Warn "Tag $Version will be deleted and recreated"
     }
 
     # Delete GitHub release if it exists
@@ -150,12 +150,12 @@ if ($ReleaseExists -or $TagExistsLocal -or $TagExistsRemote) {
             gh release delete "$Version" --repo "$RepoName" --yes 2>&1 | Out-Null
             Write-Success "GitHub release deleted"
         } catch {
-            Write-Error "Failed to delete GitHub release"
-            Write-Warning "You may need to delete it manually from GitHub"
+            Write-Err "Failed to delete GitHub release"
+            Write-Warn "You may need to delete it manually from GitHub"
         }
     } elseif ($ReleaseExists) {
-        Write-Warning "Cannot delete GitHub release automatically (gh CLI not available)"
-        Write-Warning "Please delete it manually from: https://github.com/$RepoName/releases/tag/$Version"
+        Write-Warn "Cannot delete GitHub release automatically (gh CLI not available)"
+        Write-Warn "Please delete it manually from: https://github.com/$RepoName/releases/tag/$Version"
     }
 
     # Delete remote tag if it exists
@@ -165,7 +165,7 @@ if ($ReleaseExists -or $TagExistsLocal -or $TagExistsRemote) {
             git push origin ":refs/tags/$Version" 2>&1 | Out-Null
             Write-Success "Remote tag deleted"
         } catch {
-            Write-Warning "Failed to delete remote tag (may not exist or already deleted)"
+            Write-Warn "Failed to delete remote tag (may not exist or already deleted)"
         }
     }
 
@@ -183,7 +183,7 @@ Write-Info "Current branch: $CurrentBranch"
 
 # Check if we're on main/master branch
 if ($CurrentBranch -ne "main" -and $CurrentBranch -ne "master") {
-    Write-Warning "You're not on main/master branch"
+    Write-Warn "You're not on main/master branch"
     $Response = Read-Host "Do you want to continue anyway? (y/N)"
     if ($Response -notmatch '^[Yy]$') {
         Write-Info "Release cancelled"
@@ -193,16 +193,16 @@ if ($CurrentBranch -ne "main" -and $CurrentBranch -ne "master") {
 
 # Check if remote is configured (already checked above, but verify)
 if (-not $RepoName) {
-    Write-Error "Could not determine repository name from remote URL"
+    Write-Err "Could not determine repository name from remote URL"
     exit 1
 }
 
 Write-Info "Remote repository: $RepoName"
 
 # Confirm release
 Write-Host ""
-Write-Warning "You are about to create and push tag: $Version"
-Write-Warning "This will trigger the GitHub Actions release workflow"
+Write-Warn "You are about to create and push tag: $Version"
+Write-Warn "This will trigger the GitHub Actions release workflow"
 Write-Host ""
 $Response = Read-Host "Are you sure you want to continue? (y/N)"
 if ($Response -notmatch '^[Yy]$') {
@@ -221,8 +221,8 @@ try {
     git push origin "$Version" 2>&1 | Out-Null
     Write-Success "Tag pushed successfully"
 } catch {
-    Write-Error "Failed to push tag"
-    Write-Warning "Tag was created locally but not pushed"
+    Write-Err "Failed to push tag"
+    Write-Warn "Tag was created locally but not pushed"
     Write-Host "You can push it manually with: git push origin $Version"
     exit 1
 }