Remove settings preview page

internal/xhotkey/hotkey_linux_platform.go

@@ -2,25 +2,9 @@
 
 package hotkey
 
-import (
-	"sync"
-
-	"github.com/godbus/dbus/v5"
-)
-
-const (
-	linuxHKNone = iota
-	linuxHKPortal
-)
+import "sync"
 
 type platformHotkey struct {
 	mu         sync.Mutex
 	registered bool
-	backend    int
-
-	// Wayland / XDG portal global shortcuts
-	portalStop  chan struct{}
-	portalDone  chan struct{}
-	portalConn  *dbus.Conn
-	sessionPath dbus.ObjectPath
 }