fix: thumbnail sizes could be wrong when switching between screens

src/logic/Window.swift

@@ -4,6 +4,7 @@ class Window {
     var cgWindowId: CGWindowID
     var title: String!
     var thumbnail: NSImage?
+    var thumbnailFullSize: NSSize?
     var icon: NSImage? { get { application.icon } }
     var shouldShowTheUser = true
     var isTabbed: Bool = false
@@ -66,6 +67,7 @@ class Window {
     func refreshThumbnail() {
         guard let cgImage = cgWindowId.screenshot() else { return }
         thumbnail = NSImage(cgImage: cgImage, size: NSSize(width: cgImage.width, height: cgImage.height))
+        thumbnailFullSize = thumbnail!.size
     }
 
     func refreshIsTabbed(_ currentWindows: [AXUIElement]) {

src/logic/Windows.swift

@@ -102,11 +102,10 @@ class Windows {
                     DispatchQueue.main.async {
                         let view = ThumbnailsView.recycledViews[currentIndex]
                         if view.thumbnail.image != window.thumbnail {
+                            let oldSize = view.thumbnail.frame.size
                             view.thumbnail.image = window.thumbnail
-                            let (thumbnailWidth, thumbnailHeight) = ThumbnailView.thumbnailSize(window.thumbnail, screen)
-                            let thumbnailSize = NSSize(width: thumbnailWidth.rounded(), height: thumbnailHeight.rounded())
-                            view.thumbnail.image?.size = thumbnailSize
-                            view.thumbnail.frame.size = thumbnailSize
+                            view.thumbnail.image?.size = oldSize
+                            view.thumbnail.frame.size = oldSize
                         }
                     }
                 }

src/ui/main-window/ThumbnailView.swift

@@ -99,13 +99,14 @@ class ThumbnailView: NSStackView {
 
     func updateRecycledCellWithNewContent(_ element: Window, _ index: Int, _ newHeight: CGFloat, _ screen: NSScreen) {
         window_ = element
-        if thumbnail.image != element.thumbnail {
-            thumbnail.image = element.thumbnail
-            let (thumbnailWidth, thumbnailHeight) = ThumbnailView.thumbnailSize(element.thumbnail, screen)
-            let thumbnailSize = NSSize(width: thumbnailWidth.rounded(), height: thumbnailHeight.rounded())
-            thumbnail.image?.size = thumbnailSize
-            thumbnail.frame.size = thumbnailSize
+        thumbnail.image = element.thumbnail
+        if let image = thumbnail.image {
+            image.size = element.thumbnailFullSize!
         }
+        let (thumbnailWidth, thumbnailHeight) = ThumbnailView.thumbnailSize(element.thumbnail, screen)
+        let thumbnailSize = NSSize(width: thumbnailWidth.rounded(), height: thumbnailHeight.rounded())
+        thumbnail.image?.size = thumbnailSize
+        thumbnail.frame.size = thumbnailSize
         if appIcon.image != element.icon {
             appIcon.image = element.icon
             let appIconSize = NSSize(width: Preferences.iconSize, height: Preferences.iconSize)