macOS: Make sure app is active when showing the About dialog

Signed-off-by: Roopesh Chander <roop@roopc.net>

WireGuard/WireGuard/UI/macOS/StatusMenu.swift

@@ -169,6 +169,7 @@ class StatusMenu: NSMenu {
             tr(format: "macAppVersion (%@)", appVersion),
             tr(format: "macGoBackendVersion (%@)", WIREGUARD_GO_VERSION)
         ].joined(separator: "\n")
+        NSApp.activate(ignoringOtherApps: true)
         NSApp.orderFrontStandardAboutPanel(options: [
             .applicationVersion: appVersionString,
             .version: ""