Fix picker arrows and Escape being lost to the window

mac/Sources/Byre/Dialogs.swift

@@ -60,6 +60,8 @@ final class Overlays {
     @ObservationIgnored weak var window: NSWindow?
     @ObservationIgnored private var monitor: Any?
     @ObservationIgnored private var mouseMonitor: Any?
+    @ObservationIgnored private var holders = 0
+    @ObservationIgnored private var ctrl: @MainActor (String) -> Bool = { _ in false }
 
     var isOpen: Bool {
         !alerts.isEmpty || image != nil || menu != nil || modal != nil || switcher != nil
@@ -131,6 +133,8 @@ final class Overlays {
     }
 
     func install(_ ctrl: @escaping @MainActor (String) -> Bool) {
+        holders += 1
+        self.ctrl = ctrl
         if monitor != nil {
             return
         }
@@ -143,7 +147,7 @@ final class Overlays {
                 guard let self, let window = self.window, win == ObjectIdentifier(window) else {
                     return false
                 }
-                return self.key(event, code, flags, chars, ctrl)
+                return self.key(event, code, flags, chars)
             }
             return taken ? nil : event
         }
@@ -158,7 +162,7 @@ final class Overlays {
         }
     }
 
-    private func key(_ event: NSEvent, _ code: UInt16, _ flags: NSEvent.ModifierFlags, _ chars: String, _ ctrl: @MainActor (String) -> Bool) -> Bool {
+    private func key(_ event: NSEvent, _ code: UInt16, _ flags: NSEvent.ModifierFlags, _ chars: String) -> Bool {
         if !dialogOpen && flags.contains(.control) && !flags.contains(.command) && goKeys.contains(chars) {
             return ctrl(chars)
         }
@@ -213,6 +217,11 @@ final class Overlays {
     }
 
     func uninstall() {
+        holders -= 1
+        if holders > 0 {
+            return
+        }
+        ctrl = { _ in false }
         if let monitor {
             NSEvent.removeMonitor(monitor)
         }