Allow rendering raw IPython.display output in dashboard builder

[philippjfr]

This PR adds a few improvements to the dashboard builder UI:

• We now patch the IPython.display.display utility (in addition to the display utility) with our custom handler
• We add handling for raw mimebundles in our patched utility
• We add a mime renderer for the Plotly mime type
• We add a minimum height for Plotly output since the initial sizing may not work

As an example, this allows us to do stuff like this:

[codecov]

Codecov Report

Attention: Patch coverage is 11.36364% with 39 lines in your changes are missing coverage. Please review.

Project coverage is 81.75%. Comparing base (510d212) to head (d62a770).

Files	Patch %	Lines
panel/io/handlers.py	10.00%	36 Missing ⚠️
panel/io/mime_render.py	25.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6657      +/-   ##
==========================================
- Coverage   82.84%   81.75%   -1.10%     
==========================================
  Files         313      313              
  Lines       46119    46154      +35     
==========================================
- Hits        38207    37732     -475     
- Misses       7912     8422     +510     

Flag	Coverage Δ
ui-tests	36.90% <11.36%> (-3.09%)	⬇️
unitexamples-tests	71.12% <11.36%> (-0.02%)	⬇️

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