chore: bump version to 1.7.3+17

Nouveau logo et icônes (Android, Fire TV, iOS) : publie une release
dédiée plutôt que de remplacer l'APK de v1.7.2.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GyudLt8TgggqbWWkqjB19K

lib/features/iptv/widgets/mobile_settings_tab.dart

@@ -107,7 +107,7 @@ class _MobileSettingsTabState extends ConsumerState<MobileSettingsTab> {
                       ),
                     ),
                     Text(
-                      'Version 1.7.2',
+                      'Version 1.7.3',
                       style: GoogleFonts.inter(
                         fontSize: 13,
                         color: AppDecorations.textSecondary(context),

pubspec.yaml

@@ -1,7 +1,7 @@
 name: xtremobile
 description: High-performance IPTV application (Android, iPhone, iPad) with Xtream Codes API
 publish_to: 'none'
-version: 1.7.2+16
+version: 1.7.3+17
 
 environment:
   sdk: '>=3.0.0 <4.0.0'