feat: AppLocalizations CodeLens preview in Dart code

eslint.config.js

@@ -30,7 +30,7 @@ export default [
             "eqeqeq": "warn",
             "no-throw-literal": "warn",
             "@typescript-eslint/naming-convention": "warn",
-            "semi": "off",
+            "semi": ["warn", "always"],
         }
     }
 ];

package.json

@@ -21,7 +21,8 @@
     "Other"
   ],
   "activationEvents": [
-    "onLanguage:json"
+    "onLanguage:json",
+    "onLanguage:dart"
   ],
   "icon": "media/logo.png",
   "main": "./out/extension.js",
@@ -79,6 +80,30 @@
               }
             }
           ]
+        },
+        "arb-editor.enableAppLocalizationsCodeLens": {
+          "type": "boolean",
+          "default": true,
+          "markdownDescription": "Enable AppLocalizations CodeLens in Dart files."
+        },
+        "arb-editor.appLocalizationsCodeLensLanguageMode": {
+          "type": "string",
+          "enum": [
+            "definedByYaml",
+            "custom"
+          ],
+          "default": "definedByYaml",
+          "markdownDescription": "Selects how the `lang` template variable is resolved for AppLocalizations CodeLens text.\n\n- `definedByYaml`: uses language defined in the `template-arb-file` value of `l10n.yaml` file.\n- `custom`: uses `#arb-editor.appLocalizationsCodeLensCustomLanguage#`."
+        },
+        "arb-editor.appLocalizationsCodeLensCustomLanguage": {
+          "type": "string",
+          "default": "en",
+          "markdownDescription": "Custom language code used for the `lang` template variable (for example: `en`, `fr`, `ru`).\n\nThis setting only applies when `#arb-editor.appLocalizationsCodeLensLanguageMode#` is `custom`."
+        },
+        "arb-editor.appLocalizationsCodeLensTemplate": {
+          "type": "string",
+          "default": "[${lang}]: \"${value}\"",
+          "markdownDescription": "Template used to render AppLocalizations CodeLens text.\n\nAvailable variables:\n- `${value}`: localized value from the resolved `.arb` file.\n- `${path}`: full path to the resolved `.arb` file.\n- `${filename}`: filename of the resolved `.arb` file.\n- `${lang}`: resolved language code (`en`, `fr`, `ru`)."
         }
       }
     }