Update iframe source URL for NWB Assistant chat

[magland]

I would like to update the URL for NWB Assistant to point to the new version. Feel free to try it out. The logic / prompts are the same... it's just the latest interface I am using shared across multiple chat applications.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.23%. Comparing base (801f92e) to head (c0b1995).
⚠️ Report is 1 commits behind head on dev.

Additional details and impacted files

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##              dev    #2140   +/-   ##
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  Coverage   95.23%   95.23%           
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  Files          29       29           
  Lines        2876     2876           
  Branches      740      740           
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  Hits         2739     2739           
  Misses         83       83           
  Partials       54       54           

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integration	74.44% <ø> (ø)
unit	84.94% <ø> (ø)

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[stephprince]

thanks for the update @magland !

One thing I noticed is that the new chat width does not expand to fill a wider screen display as the previous chat interface did, resulting in the "close assistant" tab dangling. Not sure where the best place to update that is?

[magland]

@stephprince What you are showing in the screenshot is not an issue with the current PR. It seems some other changes were made elsewhere to the side panel... what you are showing in that screenshot is not consistent with what is seen in the deployed docs at

https://pynwb.readthedocs.io/en/stable/

Also, I have updated the url in this PR again to the latest location for this: https://nwb-assistant.neurosift.app

[magland]

For now, I have redirected the old nwb assistant to the new one... so effectively it is giving https://nwb-assistant.neurosift.app

[stephprince]

@magland, I see. I was looking at the readthedocs build from this PR but it looks like the tab issue I noticed was already merged to dev I believe as part of #2124. I will look into that as a separate issue.