feat(mobile): use shared native client (#25942)

* use shared client in dart

fix android

* websocket integration

platform-side headers

update comment

consistent platform check

tweak websocket handling

support streaming

* redundant logging

* fix proguard

* formatting

* handle onProgress

* support videos on ios

* inline return

* improved ios impl

* cleanup

* sync stopForegroundBackup

* voidify

* future already completed

* stream request on android

* outdated ios ws code

* use `choosePrivateKeyAlias`

* return result

* formatting

* update tests

* redundant check

* handle custom headers

* move completer outside of state

* persist auth

* dispose old socket

* use group id for cookies

* redundant headers

* cache global ref

* handle network switching

* handle basic auth

* apply custom headers immediately

* video player update

* fix

* persist url

* potential logout fix

---------

Co-authored-by: Alex <alex.tran1502@gmail.com>

mobile/lib/providers/app_life_cycle.provider.dart

@@ -232,7 +232,7 @@ class AppLifeCycleNotifier extends StateNotifier<AppLifeCycleEnum> {
     }
   }
 
-  Future<void> _performPause() async {
+  Future<void> _performPause() {
     if (_ref.read(authProvider).isAuthenticated) {
       if (!Store.isBetaTimelineEnabled) {
         // Do not cancel backup if manual upload is in progress
@@ -240,15 +240,13 @@ class AppLifeCycleNotifier extends StateNotifier<AppLifeCycleEnum> {
           _ref.read(backupProvider.notifier).cancelBackup();
         }
       } else {
-        await _ref.read(driftBackupProvider.notifier).stopForegroundBackup();
+        _ref.read(driftBackupProvider.notifier).stopForegroundBackup();
       }
 
       _ref.read(websocketProvider.notifier).disconnect();
     }
 
-    try {
-      await LogService.I.flush();
-    } catch (_) {}
+    return LogService.I.flush().catchError((_) {});
   }
 
   Future<void> handleAppDetached() async {