docs: clarify where Toolbar's ref land for floating vs docked

Author: k0ndee

docs/src/data/componentDocs6x.json

@@ -12072,7 +12072,7 @@
                 }
               ]
             },
-            "description": ""
+            "description": "For `floating`, the ref lands on the `Surface` pill itself; for\n`docked`, it lands on the outer positioning wrapper `View`, not the\npill inside it."
           }
         }
       },

src/components/Toolbar/Toolbar.tsx

@@ -63,6 +63,11 @@ export type Props = {
    * @optional
    */
   theme?: ThemeProp;
+  /**
+   * For `floating`, the ref lands on the `Surface` pill itself; for
+   * `docked`, it lands on the outer positioning wrapper `View`, not the
+   * pill inside it.
+   */
   ref?: React.RefObject<View>;
 };