feat: move contextMenu into the component tree and control via appState (#6021)

src/actions/actionToggleGridMode.tsx

@@ -20,6 +20,9 @@ export const actionToggleGridMode = register({
     };
   },
   checked: (appState: AppState) => appState.gridSize !== null,
+  contextItemPredicate: (element, appState, props) => {
+    return typeof props.gridModeEnabled === "undefined";
+  },
   contextItemLabel: "labels.showGrid",
   keyTest: (event) => event[KEYS.CTRL_OR_CMD] && event.code === CODES.QUOTE,
 });