cocoa-cb: fix Space switching when quitting fs

when quitting mpv in fullscreen the System always switchs to Space 1
regardless of which Space mpv was on previous to switching to fs. to fix
this we close the window before quitting fs. that way the System
switches back the the Space mpv was previous on before fs.

video/out/cocoa_cb_common.swift

@@ -459,6 +459,12 @@ class CocoaCB: NSObject {
     }
 
     func shutdown(_ destroy: Bool = false) {
+        isShuttingDown = window?.isAnimating ?? false || window?.isInFullscreen ?? false
+        if window?.isInFullscreen ?? false && !(window?.isAnimating ?? false) {
+            window.close()
+        }
+        if isShuttingDown { return }
+
         setCursorVisiblility(true)
         stopDisplaylink()
         uninitLightSensor()
@@ -476,10 +482,6 @@ class CocoaCB: NSObject {
     func processEvent(_ event: UnsafePointer<mpv_event>) {
         switch event.pointee.event_id {
         case MPV_EVENT_SHUTDOWN:
-            if window != nil && window.isAnimating {
-                isShuttingDown = true
-                return
-            }
             shutdown()
         case MPV_EVENT_PROPERTY_CHANGE:
             if backendState == .initialized {