Fix some more playground errors (#1975)

This commit adds `ErrorBoundary` back in to catch some more errors.

Related-to: GH-1956.
Closes GH-1975.

Reviewed-by: Christian Murphy <christian.murphy.42@gmail.com>
Reviewed-by: Titus Wormer <tituswormer@gmail.com>

Author: xHomu

Diff for: docs/_component/editor.client.js

@@ -241,7 +241,9 @@ export const Editor = ({children}) => {
         <TabPanel>
           <noscript>Enable JavaScript for the rendered result.</noscript>
           <div className="frame-body frame-body-box-fixed-height frame-body-box">
-            {state.file && state.file.result ? <Preview /> : null}
+            <ErrorBoundary FallbackComponent={ErrorFallback}>
+              {state.file && state.file.result ? <Preview /> : null}
+            </ErrorBoundary>
           </div>
         </TabPanel>
         <TabPanel>