Refactor radio settings and localization updates

fixes #72

- Removed preset configurations for 915 MHz, 868 MHz, and 433 MHz from the RadioSettings model.
- Introduced a new list of regional preset configurations for various countries.
- Updated the settings screen to use a dropdown for selecting presets instead of chips.
- Added a switch for enabling client repeat functionality with appropriate warnings for frequency usage.
- Updated localization files for multiple languages to reflect changes in settings related to client repeat functionality.

lib/l10n/app_zh.arb

@@ -136,9 +136,6 @@
   "settings_infoContactsCount": "联系人数量",
   "settings_infoChannelCount": "通道数量",
   "settings_presets": "预设",
-  "settings_preset915Mhz": "915 兆赫",
-  "settings_preset868Mhz": "868 兆赫",
-  "settings_preset433Mhz": "433 兆赫",
   "settings_frequency": "频率 (MHz)",
   "settings_frequencyHelper": "300.0 - 2500.0",
   "settings_frequencyInvalid": "无效频率（300-2500 MHz）",
@@ -148,8 +145,6 @@
   "settings_txPower": "TX 功率（dBm）",
   "settings_txPowerHelper": "0 - 22",
   "settings_txPowerInvalid": "无效的发射功率（0-22 dBm）",
-  "settings_longRange": "远距离",
-  "settings_fastSpeed": "高速",
   "settings_error": "[保存：{message}]\n错误：{message}",
   "@settings_error": {
     "placeholders": {
@@ -1598,5 +1593,8 @@
   "map_runTrace": "运行路径跟踪",
   "scanner_bluetoothOffMessage": "请打开蓝牙功能，以便搜索设备。",
   "scanner_bluetoothOff": "蓝牙已关闭",
-  "scanner_enableBluetooth": "启用蓝牙"
+  "scanner_enableBluetooth": "启用蓝牙",
+  "settings_clientRepeat": "离网重复",
+  "settings_clientRepeatSubtitle": "允许此设备重复发送网状数据包给其他设备",
+  "settings_clientRepeatFreqWarning": "离网重复通信需要使用 433、869 或 918 兆赫兹的频率。"
 }