Docs review

[MarcSkovMadsen]

Complements #7126 by fixing what I can fix.

Todo:

• Remove _extension_name from ESM examples
• Document you can create layouts with AnyWidgetComponent via get_child.
• Update layout guides to include AnyWidgetComponent.
• Add a MarioButton tutorial based on AnyWidgetComponent or ReactComponent.
• Philipp? Fix React issue identified below.

Not

• Many relative links are broken in Panel documentation site #7087
• Make ReactComponent or AnyWidgetComponent callback examples https://holoviz-dev.github.io/panel/how_to/custom_components/esm/callbacks.html
• Add AnyWidget example to https://holoviz-dev.github.io/panel/how_to/custom_components/esm/dataframe.html
• Add JSComponent and AnyWidget versions of
  • https://holoviz-dev.github.io/panel/how_to/custom_components/examples/esm_canvas.html

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.24%. Comparing base (c709832) to head (0ab21ae).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7127   +/-   ##
=======================================
  Coverage   82.23%   82.24%           
=======================================
  Files         335      335           
  Lines       49960    49960           
=======================================
+ Hits        41083    41088    +5     
+ Misses       8877     8872    -5     

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[MarcSkovMadsen]

I intended to fix broken links #7087 in this PR. But its grown. So I believe its better to get it reviewed now when its still manageble. Then I hope to fix broken links in another PR.

[philippjfr]

Merging as is for now.