Restore missing docstring for id prop in all components

Author: KoolADE85

dash/dash-renderer/src/types/component.ts

@@ -11,7 +11,12 @@ import {
     useDevtoolMenuButtonClassName
 } from '../components/error/menu/DevtoolContext';
 
+// Caution: These docstrings appear in the published documentation!
 export type BaseDashProps = {
+    /**
+     * The ID of this component, used to identify dash components in callbacks.
+     * The ID needs to be unique across all of the components in an app.
+     */
     id?: string;
     componentPath?: DashLayoutPath;
     [key: string]: any;