feat: add qBittorrent API key setup support

Expose qBittorrent WebUI API Key fields in settings and setup so 5.2 users can connect without requiring username/password.

Refs jxxghp/MoviePilot#5724

src/locales/en-US.ts

@@ -2933,8 +2933,10 @@ export default {
     rtorrentHostHint: 'HTTP: http://ip:port/RPC2 or SCGI: scgi://ip:port',
     default: 'Default',
     host: 'Host',
+    apiKey: 'API Key',
     username: 'Username',
     password: 'Password',
+    qbittorrentApiKeyHint: 'For qBittorrent 5.2+, you can use the WebUI API Key directly. When set, API Key auth is preferred.',
     category: 'Auto Category Management',
     sequentail: 'Sequential Download',
     force_resume: 'Force Resume',

src/locales/zh-CN.ts

@@ -2886,8 +2886,10 @@ export default {
     rtorrentHostHint: 'HTTP: http://ip:port/RPC2 或 SCGI: scgi://ip:port',
     default: '默认',
     host: '地址',
+    apiKey: 'API Key',
     username: '用户名',
     password: '密码',
+    qbittorrentApiKeyHint: 'qBittorrent 5.2+ 可直接使用 WebUI API Key；填写后将优先使用 API Key 登录。',
     category: '自动分类管理',
     sequentail: '顺序下载',
     force_resume: '强制继续',

src/locales/zh-TW.ts

@@ -2888,8 +2888,10 @@ export default {
     enabled: '啟用',
     default: '預設',
     host: '地址',
+    apiKey: 'API Key',
     username: '用戶名',
     password: '密碼',
+    qbittorrentApiKeyHint: 'qBittorrent 5.2+ 可直接使用 WebUI API Key；填寫後將優先使用 API Key 登入。',
     category: '自動分類管理',
     sequentail: '順序下載',
     force_resume: '強制繼續',