Update zh_TW.json (#1229)

Fix errors, update zh-TW translation.

src/i18n/zh_TW.json

@@ -21,6 +21,8 @@
   "term.login": "登入",
   "term.quit" : "結束",
   "term.about": "關於",
+  "term.cast" : "投影",
+  "term.cast2" : "投影到裝置",
   "term.privateSession": "私人時間",
   "term.queue": "待播清單",
   "term.lyrics": "歌詞",
@@ -222,13 +224,14 @@
   "action.deletepreset": "刪除預設",
   "action.open": "開啟",
   "action.cast.chromecast": "Chromecast",
-  "action.cast.todevices": "投射到裝置",
-  "action.cast.stop": "停止投射到所有裝置",
+  "action.cast.todevices": "投影到裝置",
+  "action.cast.stop": "停止投影到所有裝置",
   "action.cast.airplay": "AirPlay",
   "action.cast.airplay.underdevelopment": "AirPlay 仍處於開發階段中，敬請期待。",
   "action.cast.scan": "尋找",
   "action.cast.scanning": "尋找中...",
   "action.createNew": "新增...",
+  "action.refresh": "重新整理",
   "settings.header.general": "一般",
   "settings.header.general.description": "調整 Cider 的一般設定",
   "settings.option.general.resumebehavior": "還原行為",
@@ -341,6 +344,7 @@
   "settings.option.visual.theme.github.openfolder": "開啟主題存放位置",
   "settings.option.visual.theme.github.explore": "探索 GitHub 上的主題",
   "settings.prompt.visual.theme.github.URL": "輸入你要安裝的主題網址",
+  "settings.option.visual.theme.checkForUpdates": "檢查更新",
   "settings.option.visual.theme.manageStyles": "管理主題",
   "settings.option.visual.theme.uninstall": "移除",
   "settings.option.visual.theme.viewInfo": "查看資訊",
@@ -375,7 +379,7 @@
   "settings.option.lyrics.musixmatchPreferredLanguage": "Musixmatch 歌詞優先語言偏好選項",
   "settings.option.lyrics.enableYoutubeLyrics": "播放 MV 時，使用 YouTube 歌詞",
   "settings.option.lyrics.enableQQLyrics": "開啟 QQ 音樂的歌詞",
-  "settings.header.connectivity": "外部連接",
+  "settings.header.connectivity": "連接",
   "settings.header.connectivity.description": "調整 Cider 與外部的連接",
   "settings.option.connectivity.playbackNotifications": "歌曲播放通知",
   "settings.option.connectivity.discordRPC": "Discord 動態",