update documentation for LoadingWrapper and DatawrwapperIframe

src/lib/DatawrapperIframe/DatawrapperIframe.stories.svelte

@@ -10,7 +10,7 @@
       docs: {
         description: {
           component:
-            "Datawrapper iframe with <a href='https://developer.datawrapper.de/docs/listening-to-chart-interaction-events' target='_blank'>event dispatching</a> enabled. All interaction events are accessible via <code>on:eventname</code> (<b>no periods</b>) on the `DatawrapperIframe` Svelte component itself.<br/><br/>The complete event list and associated descriptions can be found <a href='https://developer.datawrapper.de/docs/listening-to-chart-interaction-events#visualization-events' target='_blank'>here</a>.<br/><br/>In April 2024, the <code>vis.rendered</code> event was added to the Datawrapper event list (per the Urban team's request) in order to track when a visualization had been rendered/painted on the page. This is useful if there is a longer loading visualization (like a large map) and you'd like to indicate to the user that the visualization is still loading.<br><br>The `startrender` event is available via the component's `beforeUpdate()` function in order to track when the iframe starts to load. This can be combined with the `vis.rendered` event to track when the visualization has been rendered/painted on the page in combination with the <a href='/docs/components-loadingwrapper--docs' >LoadingWrapper</a> component."
+            "Datawrapper iframe with <a href='https://developer.datawrapper.de/docs/listening-to-chart-interaction-events' target='_blank'>event dispatching</a> enabled. All interaction events are accessible via <code>on:eventname</code> (<b>no periods</b>) on the `DatawrapperIframe` Svelte component itself. The complete event list and associated descriptions can be found <a href='https://developer.datawrapper.de/docs/listening-to-chart-interaction-events#visualization-events' target='_blank'>here</a>.<br/><br/>Examples of how to setup \"switching\" between Datawrapper charts with a dropdown or button controls can be found <a href='/docs/examples-datawrapper-switching--docs'>in the Examples section here</a>.<br/><br/>In April 2024, the <code>vis.rendered</code> event was added to the Datawrapper event list (per the Urban team's request) in order to track when a visualization had been rendered/painted on the page. This is useful if there is a longer loading visualization (like a large map) and you'd like to indicate to the user that the visualization is still loading.<br><br>The `startrender` event is available via the component's `beforeUpdate()` function in order to track when the iframe starts to load. This can be combined with the `vis.rendered` event to track when the visualization has been rendered/painted on the page in combination with the <a href='/docs/components-loadingwrapper--docs' >LoadingWrapper</a> component."
         }
       }
     }

src/lib/LoadingWrapper/LoadingWrapper.stories.svelte

@@ -13,7 +13,7 @@
       docs: {
         description: {
           component:
-            'Wrapper to display a loading spinner graphic while content is loading. All children wrapped in component. Accepts an alternative graphic for the "graphic" named slot.'
+            'Wrapper to display a loading spinner graphic while content is loading. Exposes `setChildLoading()` and `setChildLoaded()` to be used by children as an alternative method of setting `isChildLoading` boolean. Accepts an alternative graphic for the "graphic" named slot.'
         }
       }
     }