fix: main window would sometimes appear after a delay (closes #1096)

src/logic/Windows.swift

@@ -100,9 +100,13 @@ class Windows {
 
     static func voiceOverFocusedWindow() {
         guard App.app.appIsBeingUsed && App.app.thumbnailsPanel.isKeyWindow else { return }
-        let window = ThumbnailsView.recycledViews[focusedWindowIndex]
-        if window.window_ != nil && window.window != nil {
-            App.app.thumbnailsPanel.makeFirstResponder(window)
+        // it seems that sometimes makeFirstResponder is called before the view is visible
+        // and it creates a delay in showing the main window; calling it with some delay seems to work around this
+        DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(10)) {
+            let window = ThumbnailsView.recycledViews[focusedWindowIndex]
+            if window.window_ != nil && window.window != nil {
+                App.app.thumbnailsPanel.makeFirstResponder(window)
+            }
         }
     }
 

src/ui/App.swift

@@ -217,10 +217,10 @@ class App: AppCenterApplication, NSApplicationDelegate {
         thumbnailsPanel.thumbnailsView.updateItemsAndLayout(currentScreen)
         guard appIsBeingUsed else { return }
         thumbnailsPanel.setContentSize(thumbnailsPanel.thumbnailsView.frame.size)
-        Windows.voiceOverFocusedWindow() // at this point ThumbnailViews are assigned to the window, and ready
         thumbnailsPanel.display()
         guard appIsBeingUsed else { return }
         currentScreen.repositionPanel(thumbnailsPanel, .appleCentered)
+        Windows.voiceOverFocusedWindow() // at this point ThumbnailViews are assigned to the window, and ready
     }
 
     private func refreshSpecificWindows(_ windowsToUpdate: [Window]?, _ currentScreen: NSScreen) -> ()? {