fix: App builder menu change "Save app" to just "Save" (#9356)

## Summary

Changes "Save app" to just "Save" as you are saving the whole workflow
as normal

## Screenshots (if applicable)

<img width="293" height="247" alt="image"
src="https://github.com/user-attachments/assets/c5aea772-12cf-4b0e-8336-8d72ef55be98"
/>

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9356-fix-App-builder-menu-change-Save-app-to-just-Save-3186d73d36508119a7c0e8e00155e0b0)
by [Unito](https://www.unito.io)

src/locales/en/main.json

@@ -3371,7 +3371,6 @@
     "viewApp": "View app"
   },
   "builderMenu": {
-    "saveApp": "Save app",
     "exitAppBuilder": "Exit app builder"
   }
 }