Add: i18n workflow check

.github/workflows/i18n-check.yml

@@ -0,0 +1,28 @@
+name: Verify all i18n files are alphabetized
+
+on:
+  push:
+  pull_request:
+    paths:
+      - strings/** # Should only check if any strings changed
+
+jobs:
+  update_translations:
+    runs-on: ubuntu-latest
+    steps:
+    # Check out the repository
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    # Set up node to run the javascript
+    - name: Set up node
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20'
+    
+    # The only argument is the `directory`, which is where the i18n files are
+    # stored.
+    - name: Run Update JSON Files action
+      uses: audiobookshelf/audiobookshelf-i18n-updater@v1.1.0
+      with:
+        directory: 'strings/'  # Adjust the directory path as needed