feat(providers): introduce collapsible groups and enhance auth feedback

Group connected providers into collapsible sections
- Improves organization and reduces visual clutter for many accounts.
- Allows users to expand and collapse provider lists as needed.
Add toast notifications for authentication success and failure
- Provides immediate and clear user feedback on authentication outcomes.
Display specific error messages in failure toasts
- Helps users understand reasons for authentication issues.
Add new i18n keys for auth success and OAuth callback instructions
- Supports new toast messages and future OAuth flow improvements.
Make "Add New Provider" cards fully clickable
- Enhances user experience and discoverability for connecting providers.
Optimize file grouping with `useMemo`
- Improves performance by memoizing the grouped files array.

Author: 0xtbug

src/i18n/locales/en.json

@@ -66,7 +66,11 @@
     "completeLogin": "Complete the login in your browser",
     "openLink": "Open Link",
     "verify": "Verify",
-    "manualCallback": "If valid callback is not detected automatically:"
+    "manualCallback": "If valid callback is not detected automatically:",
+    "authSuccess": "Provider connected successfully!"
+  },
+  "oauth": {
+    "pasteCallback": "Paste callback URL here..."
   },
   "quota": {
     "title": "Quota",

src/i18n/locales/id.json

@@ -66,7 +66,11 @@
     "completeLogin": "Selesaikan login di browser Anda",
     "openLink": "Buka Tautan",
     "verify": "Verifikasi",
-    "manualCallback": "Jika callback valid tidak terdeteksi otomatis:"
+    "manualCallback": "Jika callback valid tidak terdeteksi otomatis:",
+    "authSuccess": "Penyedia berhasil terhubung!"
+  },
+  "oauth": {
+    "pasteCallback": "Tempelkan URL callback di sini..."
   },
   "quota": {
     "title": "Kuota",

src/i18n/locales/ja.json

@@ -66,7 +66,11 @@
     "completeLogin": "ブラウザでログインを完了してください",
     "openLink": "リンクを開く",
     "verify": "確認",
-    "manualCallback": "有効なコールバックが自動検出されない場合:"
+    "manualCallback": "有効なコールバックが自動検出されない場合:",
+    "authSuccess": "プロバイダーの接続に成功しました！"
+  },
+  "oauth": {
+    "pasteCallback": "コールバックURLをここに貼り付け..."
   },
   "quota": {
     "title": "クォータ",

src/i18n/locales/ko.json

@@ -66,7 +66,11 @@
     "completeLogin": "브라우저에서 로그인을 완료하세요",
     "openLink": "링크 열기",
     "verify": "확인",
-    "manualCallback": "유효한 콜백이 자동으로 감지되지 않는 경우:"
+    "manualCallback": "유효한 콜백이 자동으로 감지되지 않는 경우:",
+    "authSuccess": "제공자가 성공적으로 연결되었습니다!"
+  },
+  "oauth": {
+    "pasteCallback": "콜백 URL을 여기에 붙여넣기..."
   },
   "quota": {
     "title": "할당량",

src/i18n/locales/th.json

@@ -66,7 +66,11 @@
     "completeLogin": "กรุณาเข้าสู่ระบบให้เสร็จสิ้นในเบราว์เซอร์",
     "openLink": "เปิดลิงก์",
     "verify": "ตรวจสอบ",
-    "manualCallback": "หากระบบไม่ตรวจพบ callback ที่ถูกต้องโดยอัตโนมัติ:"
+    "manualCallback": "หากระบบไม่ตรวจพบ callback ที่ถูกต้องโดยอัตโนมัติ:",
+    "authSuccess": "เชื่อมต่อผู้ให้บริการสำเร็จ!"
+  },
+  "oauth": {
+    "pasteCallback": "วาง URL callback ที่นี่..."
   },
   "quota": {
     "title": "โควตา",

src/i18n/locales/vi.json

@@ -66,7 +66,11 @@
     "completeLogin": "Hoàn tất đăng nhập trong trình duyệt của bạn",
     "openLink": "Mở liên kết",
     "verify": "Xác minh",
-    "manualCallback": "Nếu không tự động phát hiện callback hợp lệ:"
+    "manualCallback": "Nếu không tự động phát hiện callback hợp lệ:",
+    "authSuccess": "Kết nối nhà cung cấp thành công!"
+  },
+  "oauth": {
+    "pasteCallback": "Dán URL callback vào đây..."
   },
   "quota": {
     "title": "Hạn mức",

src/i18n/locales/zh-CN.json

@@ -66,7 +66,11 @@
     "completeLogin": "在浏览器中完成登录",
     "openLink": "打开链接",
     "verify": "验证",
-    "manualCallback": "如果未自动检测到回调："
+    "manualCallback": "如果未自动检测到回调：",
+    "authSuccess": "提供商连接成功！"
+  },
+  "oauth": {
+    "pasteCallback": "在此粘贴回调 URL..."
   },
   "quota": {
     "title": "配额",