prefer IRC over Discord

I regularly check the discord server, but it is much more likely that I will be
online on IRC, and djpohly does not seem to be active on either.

Merge remote-tracking branch 'upstream/main' into wlroots-next

limit the line length to 79 in the readme

mention the polkit dependency when using elogind or systemd-logind

Bug: https://github.com/djpohly/dwl/issues/138

Merge remote-tracking branch 'djpohly/main' into wlroots-next

update link to input-protocols

Minor changes to README

Add direct irc link

Also, move IRC section to the top so that it's more accessible.

Merge remote-tracking branch 'djpohly/main' into wlroots-next

2200: let's use this wisely

Looks like [suckless-dev] was right about one thing.

Update README.md

Merge pull request #257 from fauxmight/bar_options

Add known dwl status bar options to README

Add known dwl tag status bar options to README.md

Merge remote-tracking branch 'djpohly/main' into HEAD

implement input-inhibitor protocol

implement idle-inhibitor protocol

This allows clients to disable idle monitoring

update IRC channel

Merge pull request #137 from guidocella/libera

update IRC channel

Merge branch 'main' into wlroots-next

Merge pull request #204 from djpohly/scenegraph3

merge scenegraph3