feat/fix: App mode QA fixes (#9530)

## Summary

Additional updates for app mode

## Changes

- **What**:
- Reposition toolbar button in app mode so it doesnt jump between modes
- Move node name to under title on input/output selection
- Change delete asset button text
- Change exit builder button icon

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9530-feat-fix-App-mode-QA-fixes-31c6d73d365081738b5cc5beaf2cbd41)
by [Unito](https://www.unito.io)

src/locales/en/main.json

@@ -3178,6 +3178,7 @@
     "backToWorkflow": "Back to workflow",
     "loadTemplate": "Load a template",
     "cancelThisRun": "Cancel this run",
+    "deleteAllAssets": "Delete all assets from this run",
     "welcome": {
       "title": "App Mode",
       "message": "A simplified view that hides the node graph so you can focus on creating.",