Hack copy-paste logic on mac catalyst (#3975)

Copy/Paste WKWebView on Mac Catalyst apps is known to be buggy and
unreliable, while Apple does not fix this, this PR adds a hack
alternative which links shift + command + c/v to custom copy paste
methods, same used by the new mac top bar copy/paste icons

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Documentation: home-assistant/companion.home-assistant#

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Sources/App/WebView/WebViewController.swift

@@ -79,6 +79,23 @@ final class WebViewController: UIViewController, WKNavigationDelegate, WKUIDeleg
         underlyingPreferredStatusBarStyle
     }
 
+    #if targetEnvironment(macCatalyst)
+    override var keyCommands: [UIKeyCommand]? {
+        [
+            UIKeyCommand(
+                input: "c",
+                modifierFlags: [.shift, .command],
+                action: #selector(copyCurrentSelectedContent)
+            ),
+            UIKeyCommand(
+                input: "v",
+                modifierFlags: [.shift, .command],
+                action: #selector(pasteContent)
+            ),
+        ]
+    }
+    #endif
+
     init(server: Server, shouldLoadImmediately: Bool = false) {
         self.server = server
         self.leftEdgePanGestureRecognizer = with(UIScreenEdgePanGestureRecognizer()) {
@@ -844,15 +861,6 @@ final class WebViewController: UIViewController, WKNavigationDelegate, WKUIDeleg
         }
     }
 
-    @objc override func paste(_ sender: Any?) {
-        // Forward to webView if it can handle it
-        if webView.responds(to: #selector(paste(_:))) {
-            webView.perform(#selector(paste(_:)), with: sender)
-        } else {
-            super.paste(sender)
-        }
-    }
-
     @objc private func scheduleReconnectBackgroundTimer() {
         precondition(Thread.isMainThread)