Table caption fix/update

[pwright64]

Change to table caption (table titles) behavior in mobile to fix table captions squishing and splitting to 3 lines. Also, increased .doctable caption line-height to 2rem for better readability.

[pwright64]

I'm not sure why the static analysis failed, but stylesheet changes did fine on my local php.net. If examples are needed for the changes: https://www.php.net/manual/en/mysqli.summary.php & https://www.php.net/manual/en/about.prototypes.php

[github-actions]

🚀 Preview for commit 0925948 is available at https://web-php-pr-1994.preview.thephp.foundation

[derickr]

Could you add a screenshot with before and after? The preview doesn't have all the documentation pages.

I would also prefer it if you split up the white-space-only changes from actual code-changes (same PR is fine, but in two separate commits, please).

[pwright64]

Existing CSS on left, my changes on right

Image 1 showing main fix of unnecessary line breaks:

Image 2 showing line height on standalone table:

Image 3 showing line height on stacked tables (this page has been removed from documentation in recent PR but is the page I initially worked on, I don't know if there are other examples where similar page structure is used):

Understood on the white space changes and code changes on separate commits. I will work on updated commits in the next 24 hours.