feat: Implement command queue for BLE command handling

- Added BleCommandQueue to manage command serialization and responses in BleCommandSender.
- Updated writeData, writeDataAndWaitForAck, and writeDataAndWaitForResponse methods to utilize the command queue.
- Enhanced BleResponseHandler to complete commands based on responses received from the BLE device.
- Introduced new commands for channel management, including getChannel and setChannel.
- Created LocationTrailLayer and TrailControls widgets for displaying and managing location trails on the map.
- Added PermissionRequestDialog to handle location permission requests on app startup.
- Updated LocationTrackingService to allow GPS tracking without a BLE connection.

lib/l10n/app_localizations.dart

@@ -184,6 +184,12 @@ abstract class AppLocalizations {
   /// **'Location permission permanently denied. Please enable in Settings.'**
   String get locationPermissionPermanentlyDenied;
 
+  /// Message when location permission is needed
+  ///
+  /// In en, this message translates to:
+  /// **'Location permission is required for GPS tracking and team coordination. You can enable it later in Settings.'**
+  String get locationPermissionRequired;
+
   /// Error when location services are disabled
   ///
   /// In en, this message translates to:
@@ -1311,12 +1317,18 @@ abstract class AppLocalizations {
   /// **'Repeaters'**
   String get repeaters;
 
-  /// Section header for rooms/channels
+  /// Section header for rooms
   ///
   /// In en, this message translates to:
   /// **'Rooms'**
   String get rooms;
 
+  /// Section header for broadcast channels
+  ///
+  /// In en, this message translates to:
+  /// **'Channels'**
+  String get channels;
+
   /// Title for cache statistics section
   ///
   /// In en, this message translates to: