fix: revert incorrect thn to then change and exclude Xcode/CHANGELOG files

- Reverts "thn" (Thompson thumbnail format) back from incorrect "then" change
- Adds "thn" to typos config to prevent future false positives
- Excludes all CHANGELOG files from typos checking
- Excludes Xcode project files (pbxproj, xcscheme, storyboard) that contain
  hex identifiers that should never be modified

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: riderx

.typos.toml

@@ -23,8 +23,18 @@ extend-exclude = [
   "*.min.js",
   # Exclude node_modules
   "node_modules/",
+  # Exclude Xcode project files that contain hex identifiers - these files have
+  # automatically generated hex IDs that look like typos but must not be changed
+  "**/project.pbxproj",
+  "**/*.xcscheme",
+  "**/*.storyboard",
+  # Exclude all CHANGELOG files - they contain commit hashes and historical text
+  # that should not be modified by typo fixes
+  "CHANGELOG.md",
+  "*/CHANGELOG.md",
 ]
 
 [default.extend-words]
 # Add any custom words that should not be corrected
 # Format: incorrectword = "incorrectword"
+thn = "thn"

ios/Capacitor/Capacitor/WebViewAssetHandler.swift

@@ -450,7 +450,7 @@ open class WebViewAssetHandler: NSObject, WKURLSchemeHandler {
         "texinfo": "application/x-texinfo",
         "tgz": "application/x-compressed",
         "thmx": "application/vnd.ms-officetheme",
-        "then": "application/octet-stream",
+        "thn": "application/octet-stream",
         "tif": "image/tiff",
         "tiff": "image/tiff",
         "toc": "application/octet-stream",