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_nl.arb

@@ -131,9 +131,6 @@
   "settings_infoContactsCount": "Aantal Contacten",
   "settings_infoChannelCount": "Aantal Kanalen",
   "settings_presets": "Presets",
-  "settings_preset915Mhz": "915 MHz",
-  "settings_preset868Mhz": "868 MHz",
-  "settings_preset433Mhz": "433 MHz",
   "settings_frequency": "Frequentie (MHz)",
   "settings_frequencyHelper": "300,0 - 2500,0",
   "settings_frequencyInvalid": "Ongeldige frequentie (300-2500 MHz)",
@@ -143,8 +140,6 @@
   "settings_txPower": "TX Vermogen (dBm)",
   "settings_txPowerHelper": "0 - 22",
   "settings_txPowerInvalid": "Ongeldige TX-vermogen (0-22 dBm)",
-  "settings_longRange": "Lange Afstand",
-  "settings_fastSpeed": "Hoge Snelheid",
   "settings_error": "Fout: {message}",
   "@settings_error": {
     "placeholders": {
@@ -1598,5 +1593,8 @@
   "map_runTrace": "Padeshulp traceren",
   "scanner_enableBluetooth": "Activeer Bluetooth",
   "scanner_bluetoothOffMessage": "Zorg ervoor dat Bluetooth is ingeschakeld om naar apparaten te zoeken.",
-  "scanner_bluetoothOff": "Bluetooth is uitgeschakeld"
+  "scanner_bluetoothOff": "Bluetooth is uitgeschakeld",
+  "settings_clientRepeat": "Herhalen: Afgekoppeld",
+  "settings_clientRepeatSubtitle": "Laat dit apparaat de mesh-pakketten opnieuw verzenden voor andere apparaten.",
+  "settings_clientRepeatFreqWarning": "Om een signaal buiten het netwerk te versturen, zijn frequenties van 433, 869 of 918 MHz vereist."
 }