Patch to load inline css

[fabiovincenzi]

This PR is based on the work done in #6607 by @pankajp, which aimed to make Tabulator work offline in Jupyter Notebook when pn.config.inline=True. Since that PR currently has merge conflicts and hasn’t been updated recently, I’ve resolved the conflicts and made the necessary adjustments to ensure smooth integration.

Fixes #5167, #3959

[codecov]

Codecov Report

Attention: Patch coverage is 75.86207% with 7 lines in your changes missing coverage. Please review.

Project coverage is 86.62%. Comparing base (b17ddfd) to head (9ff1cf2).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
panel/viewable.py	53.84%	6 Missing ⚠️
panel/io/notebook.py	93.75%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7701      +/-   ##
==========================================
- Coverage   87.07%   86.62%   -0.46%     
==========================================
  Files         346      346              
  Lines       52671    52698      +27     
==========================================
- Hits        45863    45649     -214     
- Misses       6808     7049     +241     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[philippjfr]

Grearly appreciate you reviving this, and I promise to take a more detailed look at this very soon. At a high level I have some concerns with the PR.

1. This only patches the stylesheets when the table is rendered initially. If the table is added dynamically at some later point it won't catch that.
2. I'm not convinced that adding the inline resource handling in render_mimebundle does anything.

[pankajp]

Thanks a lot @fabiovincenzi and @philippjfr for getting this to completion and merging it when I wasn't able to spend much time on it.