* Dark theme fixes to brighten notification colors on mobile
* Add change log buttons around various pages to easily look into the history
of an object in the database:
* User profile page ('about user' and user table history links)
* User friends page
* User/Site gallery page (history of all (user) photos)
* Admin insights page (comments, threads, and blocklist history)
* Admin certification page (history of a user's cert photos)
* Comment history buttons on forums and photos
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