Reasons:
- freenode is now officially™ evil
- nobody of our core members is inside this channel
- some visitor told us last week, that mentioning of IRC on
our page is very confusing, when we actually only use matrix
Ich habe mir ganz viel Mühe geben.
Reviewed-on: Frontend/Homepage#35
Co-authored-by: dunji <dunji@noreply.git.dezentrale.cloud>
Co-committed-by: dunji <dunji@noreply.git.dezentrale.cloud>