fix: discover windows when switching spaces (#1324)

src/logic/Applications.swift

@@ -6,12 +6,16 @@ class Applications {
 
     static func manuallyUpdateWindowsFor2s() {
         let group = DispatchGroup()
+        manuallyUpdateWindows(group)
+        _ = group.wait(wallTimeout: .now() + .seconds(2))
+    }
+
+    static func manuallyUpdateWindows(_ group: DispatchGroup? = nil) {
         for app in list {
             if app.runningApplication.isFinishedLaunching && app.runningApplication.activationPolicy != .prohibited {
                 app.manuallyUpdateWindows(group)
             }
         }
-        _ = group.wait(wallTimeout: .now() + .seconds(2))
     }
 
     static func initialDiscovery() {

src/logic/Spaces.swift

@@ -14,6 +14,8 @@ class Spaces {
             updateCurrentSpace()
             // if UI was kept open during Space transition, the Spaces may be obsolete; we refresh them
             Windows.list.forEachAsync { $0.updatesWindowSpace() }
+            // from macos 12.2 beta onwards, we can't get other-space windows; grabbing windows when switching spaces mitigates the issue
+            Applications.manuallyUpdateWindows()
         })
         NSWorkspace.shared.notificationCenter.addObserver(forName: NSApplication.didChangeScreenParametersNotification, object: nil, queue: nil, using: { _ in
             debugPrint("OS event", "didChangeScreenParametersNotification")