Set Tabulator to render into explicit popup container

[philippjfr]

Not entirely happy with this as the editor isn't aligned quite right but I played with all the options and couldn't find one that produced the correct result.

Fixes https://github.com/holoviz/panel/issues/7295

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 87.37%. Comparing base (977e801) to head (d09c0cd). :warning: Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7299      +/-   ##
==========================================
- Coverage   87.40%   87.37%   -0.04%     
==========================================
  Files         347      347              
  Lines       53618    53618              
==========================================
- Hits        46867    46850      -17     
- Misses       6751     6768      +17     

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

:rocket: New features to boost your workflow:

• :snowflake: Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• :package: JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[hoxbro]

Seeing this problem for one of my examples in the original issue:

[philippjfr]

Yep, seeing that too. Not sure what to do about it.

[hoxbro]

What about making this setting an option for now?

Or maybe document the behavior, as it can be enabled by the configuration directly: pn.widgets.Tabulator(... configuration={"popupContainer": True})

[philippjfr]

So I'm leaning towards merging this as is now. It turns out the weird offset issue occurs only for the last column and in the meantime this PR also fixes:

https://github.com/holoviz/panel/issues/8096

and the coloring of the popup.

[philippjfr]

Okay, fixed the offset issue by inserting an empty last column.