feat: disable letter cache (#446)

Fixes #445

lib/l10n/app_zh_tw.arb

@@ -67,7 +67,6 @@
   "decode": "解碼",
   "decompress": "解壓縮",
   "delete": "刪除",
-  "deleteScripts": "同時刪除伺服器腳本",
   "deleteServers": "批量刪除伺服器",
   "deviceName": "設備名",
   "dirEmpty": "請確保資料夾為空",
@@ -154,6 +153,8 @@
   "languageName": "繁體中文",
   "lastTry": "最後嘗試",
   "launchPage": "啓動頁",
+  "letterCache": "输入法字符緩存",
+  "letterCacheTip": "推薦開啟，但是開啟後無法輸入CJK（中文、日文、韓文）等文字",
   "license": "開源許可證",
   "light": "亮",
   "loadingFiles": "正在加載目錄...",