Refactor InstallPlaywrightBackgroundService and add linter

Reordered constructor parameters in `InstallPlaywrightBackgroundService` for clarity. Updated exception handling variable name for consistency. Expanded template engine options in `index.html` to include Handlebars. Added a GitHub Actions workflow in `linter.yml` to set up a linting job for code quality checks.

Author: marcominerva

.github/workflows/linter.yml

@@ -0,0 +1,53 @@
+name: Lint Code Base
+
+permissions:
+  contents: read
+
+#############################
+# Start the job on all push #
+#############################
+on:
+  push:
+    branches-ignore: [ master ]
+    # Remove the line above to run when pushing to master  
+    paths: [ 'src/**' ]
+  pull_request:   
+    branches: [ master, develop ]
+    paths: [ 'src/**' ]    
+  workflow_dispatch:
+  
+###############
+# Set the Job #
+###############
+jobs:
+  build:
+    # Name the Job
+    name: Lint Code Base
+    # Set the agent to run on
+    runs-on: ubuntu-latest
+
+    ##################
+    # Load all steps #
+    ##################
+    steps:
+      ##########################
+      # Checkout the code base #
+      ##########################
+      - name: Checkout Code
+        uses: actions/checkout@v4
+        with:
+          # Full git history is needed to get a proper list of changed files within `super-linter`
+          fetch-depth: 0
+
+      ################################
+      # Run Linter against code base #
+      ################################
+      - name: Lint Code Base
+        uses: super-linter/super-linter@v7.2.0
+        env:
+          LINTER_RULES_PATH: '.'
+          EDITORCONFIG_FILE_NAME: '.editorconfig'
+          VALIDATE_ALL_CODEBASE: false
+          VALIDATE_CSHARP: true
+          DEFAULT_BRANCH: master
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

src/PdfSmith/BackgroundServices/InstallPlaywrightBackgroundService.cs

@@ -3,7 +3,7 @@
 
 namespace PdfSmith.BackgroundServices;
 
-public class InstallPlaywrightBackgroundService(ILogger<InstallPlaywrightBackgroundService> logger, PlaywrightHealthCheck playwrightHealthCheck) : BackgroundService
+public class InstallPlaywrightBackgroundService(PlaywrightHealthCheck playwrightHealthCheck, ILogger<InstallPlaywrightBackgroundService> logger) : BackgroundService
 {
     protected override async Task ExecuteAsync(CancellationToken stoppingToken)
     {
@@ -15,12 +15,12 @@ protected override async Task ExecuteAsync(CancellationToken stoppingToken)
             {
                 return Microsoft.Playwright.Program.Main(["install", "chromium"]);
             }
-            catch (PlaywrightException playwrightException)
+            catch (PlaywrightException ex)
             {
-                logger.LogError(playwrightException, "Error while installing Chromium");
+                logger.LogError(ex, "Error while installing Chromium");
                 return -1;
             }
-        });
+        }, stoppingToken);
 
         var playwrightStatus = returnCode switch
         {

src/PdfSmith/wwwroot/index.html

@@ -48,7 +48,7 @@ <h3>Lightning Fast</h3>
                     <div class="feature-card">
                         <div class="feature-icon">🎨</div>
                         <h3>Multiple Template Engines</h3>
-                        <p>Choose between Razor and Scriban template engines for maximum flexibility and power</p>
+                        <p>Choose between Razor, Scriban and Handlebars template engines for maximum flexibility and power</p>
                     </div>
                     <div class="feature-card">
                         <div class="feature-icon">🔐</div>