[Feature Request] Update Frontend via Manager

After doing an "Update all" via Manager, I've still got this warning:

```
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WARNING WARNING WARNING WARNING WARNING

Installed frontend version 1.10.17 is lower than the recommended version 1.14.5.

Please install the updated requirements.txt file by running:
C:\Cui\cu_121_2\ComfyUI_windows_portable\python_embeded\python.exe -m pip install -r C:\Cui\cu_121_2\ComfyUI_windows_portable\ComfyUI\requirements.txt

This error is happening because the ComfyUI frontend is no longer shipped as part of the main repo but as a pip package instead.

If you are on the portable package you can run: update\update_comfyui.bat to solve this problem
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```

It would be nice if the Frontend was updated automatically, to the latest "stable" version, when we do an "Update all"