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/wayland/client/display.go

@@ -0,0 +1,37 @@
+package client
+
+import (
+	"fmt"
+	"log"
+)
+
+// Roundtrip blocks until all pending request are processed by the server.
+// It is the implementation of [wl_display_roundtrip].
+//
+// [wl_display_roundtrip]: https://wayland.freedesktop.org/docs/html/apb.html#Client-classwl__display_1ab60f38c2f80980ac84f347e932793390
+func (i *Display) Roundtrip() error {
+	callback, err := i.Sync()
+	if err != nil {
+		return fmt.Errorf("unable to get sync callback: %w", err)
+	}
+	defer func() {
+		if err2 := callback.Destroy(); err2 != nil {
+			log.Printf("unable to destroy callback: %v\n", err2)
+		}
+	}()
+
+	done := false
+	callback.SetDoneHandler(func(_ CallbackDoneEvent) {
+		done = true
+	})
+
+	// Wait for callback to return
+	for !done {
+		err := i.Context().GetDispatch()()
+		if err != nil {
+			return fmt.Errorf("roundtrip: failed to dispatch: %w", err)
+		}
+	}
+
+	return nil
+}