Fix element margins inside posts and comments#413

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ButteredCats wants to merge 3 commits intoredlib-org:mainfrom

ButteredCats:fix_post_spacing

Commits on Apr 19, 2025

Use the same margins that reddit does, fixes uneven margins on some elements and others not having any margins at all
ButteredCats
committed
Bump new margins by .25rem to stay in line with Redlib's existing margins
ButteredCats
committed
Remove paragraphs containing only zero length spaces to prevent them messing with formatting
ButteredCats
committed