Ipc destructor closes socket and thus wakes up SleeperThread which was
waiting for socket data in Ipc::handleEvent.
Ipc::handleEvent then proceeds with sending signal to already destroyed
object, causing heap-use-after-free Address Sanitizer error.
Previously, any and all scroll events were interpreted as reason to switch
workspaces. This resulted in twitchy behaviour, where the scrolling was
practically unusable.
Now, we pool all scroll values, and only scroll if the value is larger than the
new config option "smooth-scrolling-threshold". If this option is not set, the
behaviour is unchanged.
The way waybar used the workspace "num", clicking a workspace called "1:
something" resulted in going to a newly created workspace called "1",
because the workspace ipc command expects the workspace name, not its number.
