Fixes #60865

Merge pull request #60917 from aphexcreations/brendoncrawford/fix-term-helper-config-test-error-fedora

Fixes tests error with faulty OS check when OS is Fedora

* remove extra margins on completion hovers with markdown

* fixed styles to consider docs with multiple paragraphts

* space above docs as padding (instead of margin)

See https://stackoverflow.com/questions/27829250/child-margin-doesnt-affect-parent-height

* space above docs as padding (instead of margin)

See https://stackoverflow.com/questions/27829250/child-margin-doesnt-affect-parent-height

fix styles for suggest when it has zero or two paragraphs

* merge css rules

* add padding to non-empty span elements inside `.markdown-docs`

Part of #60565

This reverts commit 53321de6.