chore: Upgrade highlight.js to 10.4.1 (#1483)

Bumps [highlight.js](https://github.com/highlightjs/highlight.js) from 9.18.5 to 10.4.1.
- [Release notes](https://github.com/highlightjs/highlight.js/releases)
- [Changelog](https://github.com/highlightjs/highlight.js/blob/master/CHANGES.md)
- [Commits](https://github.com/highlightjs/highlight.js/compare/9.18.5...10.4.1)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

app/javascript/dashboard/routes/dashboard/settings/inbox/FinishSetup.vue

@@ -88,6 +88,6 @@ export default {
 
 .website--code {
   margin: $space-normal auto;
-  max-width: 60%;
+  max-width: 70%;
 }
 </style>