add setting to control mozAddonManager API

app/lib/features/user/domain/repositories/engine_settings.dart

@@ -212,6 +212,10 @@ class EngineSettingsRepository extends _$EngineSettingsRepository {
         DriftSqlType.bool,
         db.typeMapping,
       ),
+      'extensionsWebAPIEnabled': settings['extensionsWebAPIEnabled']?.readAs(
+        DriftSqlType.bool,
+        db.typeMapping,
+      ),
       // LNA Settings
       'lnaBlocking': settings['lnaBlocking']?.readAs(
         DriftSqlType.bool,

app/lib/features/user/domain/repositories/engine_settings.g.dart

@@ -34,7 +34,7 @@ final class EngineSettingsRepositoryProvider
 }
 
 String _$engineSettingsRepositoryHash() =>
-    r'3d062d316bfcb86f3216846ed2cf5edd148460eb';
+    r'4abe41cfeba8e39484683033f11c54be644fa2b2';
 
 abstract class _$EngineSettingsRepository
     extends $StreamNotifier<EngineSettings> {