feat(right-click-restorer): add unsupported page detection

- Detect and block chrome://, chrome-extension://, about://, edge://, brave:// pages
- Show 'Unsupported' badge with warning icon and disabled button
- Add 'unsupported' and 'unsupportedDesc' i18n keys (zh/en)
- Update useRightClickRestorer hook with isUnsupported state
- Add unit tests for unsupported page behavior
- Update page UI to render conditional unsupported layout

i18n/locales/en/rightClickRestorer.json

@@ -5,6 +5,8 @@
   "currentDomain": "Current Domain",
   "statusLocked": "Locked",
   "statusUnlocked": "Unlocked",
+  "unsupported": "Unsupported",
+  "unsupportedDesc": "The current page is a browser internal or extension page. Right-click unlock is not available. Please switch to a regular webpage.",
   "unlockDesc": "Click the button below to temporarily unlock the right-click menu for the current website. You will need to unlock again after refreshing the page.",
   "unlockBtn": "Unlock Right Click",
   "alreadyUnlocked": "Right Click Unlocked"

i18n/locales/zh/rightClickRestorer.json

@@ -5,6 +5,8 @@
   "currentDomain": "当前域名",
   "statusLocked": "未解锁",
   "statusUnlocked": "已解锁",
+  "unsupported": "不支持",
+  "unsupportedDesc": "当前页面为浏览器内部页面或扩展页面，无法解锁右键功能。请切换到普通网页后重试。",
   "unlockDesc": "点击下方按钮，为当前网站临时解锁右键菜单。刷新页面后需要重新解锁。",
   "unlockBtn": "解锁当前网站右键",
   "alreadyUnlocked": "右键已解锁"