feat: Add support for hash and private channels with corresponding UI updates

- Introduced new localization strings for channel types and their descriptions in Italian, German, Spanish, French, Croatian, Slovenian, and English.
- Updated the `AppProvider` to handle channel info reception, including deletion of channels and updating the UI accordingly.
- Enhanced `ChannelsProvider` to support channel removal and notify listeners.
- Modified `ConnectionProvider` to include methods for checking empty channel slots and deleting channels.
- Updated BLE service methods to handle channel deletion and verification.
- Improved the `AddChannelDialog` to differentiate between hash and private channels, including dynamic UI elements based on channel type.
- Added delete functionality for channels in the `ContactTile` widget with confirmation dialogs.
- Adjusted permission request dialog behavior to allow dismissing by tapping outside.

lib/l10n/app_localizations_sl.dart

@@ -2066,6 +2066,14 @@ class AppLocalizationsSl extends AppLocalizations {
   String get channelSecretHelp =>
       'To geslo mora biti deljeno z vsemi člani ekipe, ki potrebujejo dostop do tega kanala';
 
+  @override
+  String get channelTypesInfo =>
+      'Hash kanali (#ekipa): Geslo samodejno generirano iz imena. Enako ime = isti kanal na vseh napravah.\n\nZasebni kanali: Uporabite eksplicitno geslo. Samo tisti z geslom se lahko pridružijo.';
+
+  @override
+  String get hashChannelInfo =>
+      'Hash kanal: Geslo bo samodejno generirano iz imena kanala. Kdorkoli uporabi isto ime, se bo pridružil istemu kanalu.';
+
   @override
   String get channelNameRequired => 'Ime kanala je obvezno';