Merge pull request 'Add support for Firefox addon / 提供对 Firefox 拓展的支持' (#5) from THR-hub/web:main into main

Reviewed-on: https://git.unlock-music.dev/um/web/pulls/5

extension-manifest.json

@@ -19,5 +19,11 @@
   "action": {
     "default_icon": "img/icons/favicon-32x32.png",
     "default_popup": "./popup.html"
+  },
+  "browser_specific_settings": {
+    "gecko": {
+      "id": "addon@unlock-music.dev",
+      "strict_min_version": "128.0"
+    }
   }
 }