Highlight community slack channel link (#3127)

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

src/extensions/registries/welcome-menu-registry.ts

@@ -25,7 +25,6 @@ export interface WelcomeMenuRegistration {
   title: string | (() => string);
   icon: string;
   click: () => void | Promise<void>;
-  testId?: string;
 }
 
 export class WelcomeMenuRegistry extends BaseRegistry<WelcomeMenuRegistration> {}