chore(mobile): Apply stricter linting rules for Flutter and known issues (#30373)

mobile/analysis_options.yaml

@@ -29,7 +29,6 @@ linter:
     # Formatting
     avoid_print: true
     unawaited_futures: true
-    use_build_context_synchronously: false
     require_trailing_commas: true
     unrelated_type_equality_checks: true
     prefer_const_constructors: true
@@ -51,6 +50,18 @@ linter:
     avoid_multiple_declarations_per_line: true
     unnecessary_breaks: true
 
+    # Known issues
+    avoid_slow_async_io: true
+    avoid_type_to_string: true
+
+    # Flutter specific
+    use_build_context_synchronously: false
+    sized_box_for_whitespace: true
+    use_colored_box: true
+    use_decorated_box: true
+    avoid_unnecessary_containers: true
+    use_full_hex_values_for_flutter_colors: true
+
 # Additional information about this file can be found at
 # https://dart.dev/guides/language/analysis-options
 analyzer: