Remove some extraneous url parsing in crawler
Remove unused import
Remove debug prints
Update image templates
Add image search/random image links to home page
Add random ascii art page and permalink
Cleanup alt-text and pre a little
Add missing migrations
Extract and store ASCII art
Clean up dangling urls periodically

A dangling url is defined as one that has no backlinks and has been
erroring out for a while.
Quote search snippets
Remove extra stuff from license file
Fix robots.txt back off

We were first checking robots_prefixes being null, before checking retry
time. So in case robots_prefixes _was_ actually null, we wouldn't back
Update source address in capsule
Use whatlanggo from sr.ht
Add cancelation with context to seeder