### What problem does this PR solve?
Fix: Error 102 "Can't find dialog by ID" when embedding agent with
from=agent** #11552
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Feat: Replace antd in the chat message with shadcn. #10427
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix: Optimize code and fix ts type errors #9869
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix：Text color in Floating Widget (Intercom-style) #10624
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
These changes are intended to implement the remaining functionalities of
the fullscreen widget.
The question arises: how to display document prieview of PDFs in this
floating widget?
- simply enlarge the widget window
- implement zoom in/out
- render outside the iframe?
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Add a chat widget. I'll probably need some assistance to get this ready
for merge!
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
Co-authored-by: Mohamed Mathari <nocodeventure@Mac-mini-van-Mohamed.fritz.box>
