feat: Integrated tab UI updates (#8516)

## Summary
Next iteration of the integrated tab/top menu

## Changes
- **What**:  
- make integrated default, rename old to legacy
- move feedback to integrated
- fix user icon shapes
- remove comfy cloud text in top bar, move to canvas stats
- add chevron to C logo menu
- move help back to sidebar
   - remove now unused help top positioning code

## Screenshots (if applicable)
<img width="428" height="148" alt="image"
src="https://github.com/user-attachments/assets/725025b7-4982-4f61-be11-8aabb0a1faff"
/>
<img width="264" height="187" alt="image"
src="https://github.com/user-attachments/assets/91fa5e92-df08-4467-9bc5-50a614d9b8aa"
/>
<img width="1169" height="220" alt="image"
src="https://github.com/user-attachments/assets/68c81bea-0cff-48df-8303-a6231a1d2fc4"
/>
<img width="242" height="207" alt="image"
src="https://github.com/user-attachments/assets/5a10f40e-83ae-44c3-9434-3dbe87ba30e2"
/>
<img width="302" height="222" alt="image"
src="https://github.com/user-attachments/assets/27fcc638-5fff-4302-9a1f-066227aafd86"
/>

---------

Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: github-actions <github-actions@github.com>

src/locales/en/main.json

@@ -301,6 +301,7 @@
     "1x": "1x",
     "2x": "2x",
     "beta": "BETA",
+    "comfyCloud": "Comfy Cloud",
     "nightly": "NIGHTLY",
     "profile": "Profile",
     "noItems": "No items",
@@ -968,7 +969,6 @@
     "customNodesManager": "Custom Nodes Manager",
     "settings": "Settings",
     "help": "Help",
-    "helpAndFeedback": "Help & Feedback",
     "queue": "Queue Panel",
     "fullscreen": "Fullscreen"
   },