core/wayland: thread-safety meta fixes + cleanups + hypr workaround

- fork go-wayland/client and modify to make it thread-safe internally
- use sync.Map and atomic values in many places to cut down on mutex
  boilerplate
- do not create extworkspace client unless explicitly requested

core/pkg/go-wayland/generatep

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Runs go generate for each directory, but in parallel. Any arguments are appended to the
+# go generate command.
+# Usage: $ ./generatep [go generate arguments]
+# Print all generate commands: $ ./generatep -x
+
+cd ./wayland
+find . -type f -name '*.go' -exec dirname {} \; | sort -u | parallel -j 0 go generate $1 {}/.