Up min Chrome version.
Remove Notification.permission and page visibility polyfills.
Merge pull request #1547 from MayhemYDG/cr33

Cr33
Update deps.
Handle webm playback errors with image expansion.
Don't keep running waitExpand's asap func when the image error'd.
Better asap test for image hover.
Release 4chan X v3.20.4.
Better handling of videos inside of clones.
Oops, video.load() actually sets the autoplaying flag to true.
Rewrite the Filter.
Add per-filter anonymizing.
Close #854.
Recursive setting for filters.
Close #623.
Close #779.
Fix importing and conversion of old filters.
Re-arrange filter items to save some space.
Add importing/exporting of filters.
Close #942.
Focus the filter input when creating new filters.
Fix conversion of highlight class and pinning.
Move filter buttons at the top.
Create new filters at the top of the list.
Enable the save button immediately on text input.