UI: Disable browser docks on Wayland

When running on Wayland, the browser docks look broken and sometimes
they crash OBS Studio. Interestingly, browser sources seem to work
just fine. Ideally we'd be able to dig into the issue and find the
root cause, but time is short for the 27 release and disabling the
docks until this is figured out seems to be the best alternative for
now.

Of course this is a temporary workaround, and eventually this commit
will be reverted, and browser docks will work just fine, flowers and
rainbows and happy unicorns.

Disable browser docks on Wayland.

Related: obsproject/obs-browser#279

UI/window-basic-main.cpp

@@ -1928,7 +1928,7 @@ void OBSBasic::OBSInit()
 	/* add custom browser docks      */
 
 #ifdef BROWSER_AVAILABLE
-	if (cef) {
+	if (cef && !isWayland) {
 		QAction *action = new QAction(QTStr("Basic.MainMenu."
 						    "View.Docks."
 						    "CustomBrowserDocks"),