Add shortcut hint toggle with Super+F1

compositor/src/ipc.rs

@@ -657,6 +657,14 @@ impl Ferese {
             "toggle-maximized" => self.toggle_focused_maximized(),
             "toggle-layout" => self.toggle_layout_mode(),
             "toggle-overview" => self.toggle_overview(),
+            "toggle-keybinding-guide" => {
+                if !self.toggle_keybinding_guide() {
+                    return Err(CommandError::new(
+                        "unavailable",
+                        "Shortcut hint requires an unlocked session and an updated Ferese shell",
+                    ));
+                }
+            }
             "cycle-column-width" => self.cycle_focused_column_width(),
             "center-column" => self.center_focused_column(),
             "consume" => self.consume_focused_window(),