resizable columns in mastodon
Enables users to resize the columns in mastodon, and fills the available space. This will add drag handles at the bottom right of each column in the mastodon page, dragging these will flexiby resize each column.
Out of the box it works on any .social instance, like mastodon.social.
If your instance has an address that isn't a .social one you'll need to edit line 8 to match. E.g. if your instance address is foo.bar then line 8 needs to be
// @match https://foo.bar/*
