feat: add feedback button on about window

alt-tab-macos/ui/preferences-window/tabs/AboutTab.swift

@@ -1,26 +1,38 @@
 import Cocoa
 import Foundation
 
-class AboutTab {
+class AboutTab: NSObject {
     static func make() -> NSTabViewItem {
         return TabViewItem.make("About", NSImage.infoName, makeView())
     }
 
-    private static func makeView() -> NSGridView {
+    static func makeView() -> NSGridView {
         let appIcon = NSImageView(image: App.shared.applicationIconImage)
-        appIcon.fit(80, 80)
-        let appText = NSStackView(views: [BoldLabel(App.name), NSTextField(wrappingLabelWithString: "Version \(App.version)")])
+        appIcon.fit(128, 128)
+        let appText = NSStackView(views: [
+            BoldLabel(App.name),
+            NSTextField(wrappingLabelWithString: "Version \(App.version)"),
+            HyperlinkLabel("Source code repository", App.repository),
+            HyperlinkLabel("Latest releases", App.repository + "/releases"),
+        ])
         appText.orientation = .vertical
         appText.alignment = .left
         appText.spacing = GridView.interPadding / 2
+        appText.views[2].topAnchor.constraint(equalTo: appText.views[1].bottomAnchor, constant: GridView.interPadding).isActive = true
         let appInfo = NSStackView(views: [appIcon, appText])
         appInfo.spacing = GridView.interPadding
         let view = GridView.make([
             [appInfo],
-            [HyperlinkLabel("Source code repository", App.repository)],
-            [HyperlinkLabel("Latest releases", App.repository + "/releases")],
+            [NSButton(title: "Send feedback", target: self, action: #selector(feedbackCallback))],
         ])
+        view.row(at: 1).topPadding = GridView.interPadding * 2
+        view.cell(atColumnIndex: 0, rowIndex: 1).xPlacement = .center
         view.fit()
         return view
     }
+
+    @objc
+    static func feedbackCallback(senderControl: NSControl) {
+        (App.shared as! App).showFeedbackPanel()
+    }
 }