Remove aria-pressed where it's redundant (#19912)

This commit removes aria-pressed attribute from all elements which
contents or other descriptive attributes change in active state,
effectively replacing the meaning of the button, in which case
aria-pressed, an attribute specified whether the button is currently
pressed, would create a confusion. (Spoiler: it's everywhere).

See https://github.com/mastodon/mastodon/issues/13545#issuecomment-1304886969