fix broken search on the start page

[mosc9575]

This PR will fix the broken search on the start page of the documentation. The search was broken, because the search-button is searching for a valid from inside a <div></div>. This was missing and because of this, the button raised an error.

See the gif below to see how this works on the latest published page.

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I also want to quote from https://pydata-sphinx-theme.readthedocs.io/en/stable/user_guide/search.html:

If a page includes both the search button and an always-visible search field, the keyboard shortcuts will focus on the always-visible field and the hidden search field overlay will not display. This may not be what you want: on small screens (i.e. mobile devices) the sidebars may be hidden in a drawer, and if the persistent search field is there, it may receive focus without actually being made visible. It is strongly recommended that you use either the search button and the hidden/overlaid field that comes with it, or use a persistent search field in a place that makes sense for your layout.

This is the case on the docs of bokeh. For smaller screens the search button will go to the side bar without any visiable change for the user.

• adresses: fixes [BUG] JS errors on Bokeh docs page #13789

This PR does not solve the JS error with the version banner. The banner is broken for

• https://docs.bokeh.org/en/3.2.2/docs/first_steps.html
• https://docs.bokeh.org/en/3.3.0/docs/first_steps.html
• https://docs.bokeh.org/en/3.4.0/docs/first_steps.html

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.62%. Comparing base (e61219b) to head (477d447).
Report is 6 commits behind head on branch-3.5.

Additional details and impacted files

@@              Coverage Diff               @@
##           branch-3.5   #13823      +/-   ##
==============================================
+ Coverage       91.57%   92.62%   +1.04%     
==============================================
  Files             326      326              
  Lines           20737    20762      +25     
==============================================
+ Hits            18990    19230     +240     
+ Misses           1747     1532     -215     

[bryevdv]

This PR does not solve the JS error with the version banner. The banner is broken for

Ideally we can migrate to the theme banner and ditch our custom solution entirely, but that will take some testing and I think we will have to add a new "switcher v2" file since I think the format for the switcher config has changed

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.