chore: use stable extension marketplace registry (#1886)

Author: erha19

packages/core-common/src/const/application.ts

@@ -2,5 +2,5 @@ export const DEFAULT_APPLICATION_NAME = 'OpenSumi';
 export const DEFAULT_APPLICATION_DESKTOP_HOST = 'desktop';
 export const DEFAULT_APPLICATION_WEB_HOST = 'web';
 export const DEFAULT_URI_SCHEME = 'sumi';
-export const DEFAULT_OPENVSX_REGISTRY = 'https://marketplace.smartide.cn'; // China Mirror
-// export const DEFAULT_OPENVSX_REGISTRY = 'https://open-vsx.org'; // Official Registry
+// export const DEFAULT_OPENVSX_REGISTRY = 'https://marketplace.smartide.cn'; // China Mirror
+export const DEFAULT_OPENVSX_REGISTRY = 'https://open-vsx.org'; // Official Registry