This is necessary to display toots with media but otherwise no contents,
as glitch-soc displays the media as a child of StatusContent, unlike
Mastodon.

Port 77406d3a09 to glitch-soc

Port 86a9de6753 to glitch-soc

Port 9110db41c5 to glitch

Ports cfa9b6e13a to glitchsoc

Since 245816ab2721f386184878d71be01143d207abf5, IntersectionObserverArticle
assumes that its children do not change unless the number of children changes.

This is not the case with the notification overlay, which resulted in the
checkmark of notification cleaning mode not updating unless scrolling to make
notifications appear/disappear.

This change may negatively impact performances.