deps(mobile): flutter 3.16 (#6677)

* dep(mobile): update flutter and deps

* chore: dart analyzer

* chore: update flutter workflow version

* chore: dart format

* fix: gallery_viewer PopScope

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Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

mobile/lib/shared/ui/immich_logo.dart

@@ -21,5 +21,4 @@ class ImmichLogo extends StatelessWidget {
       ),
     );
   }
-
 }