fixed push-registration not activated on app-login

lib/main.dart

@@ -335,9 +335,17 @@ class _MainState extends State<Main> {
                     previous.status != current.status,
                 listener: (context, accountState) {
                   // Fresh login (loggedOut -> loggedIn): pull capability flags
-                  // for the newly authenticated user.
+                  // for the newly authenticated user, then register push right
+                  // away instead of deferring it to the next app start.
                   if (accountState.status == AccountStatus.loggedIn) {
-                    unawaited(context.read<CapabilitiesCubit>().load());
+                    final settingsCubit = context.read<SettingsCubit>();
+                    final capabilitiesCubit = context.read<CapabilitiesCubit>();
+                    unawaited(
+                      capabilitiesCubit.load().then((_) {
+                        if (!mounted) return;
+                        _syncPush(settingsCubit, capabilitiesCubit);
+                      }),
+                    );
                     unawaited(
                       context.read<NextcloudCapabilitiesCubit>().load(),
                     );