Now that the migration to Vue 3 is complete, compatConfig is no longer needed and should be removed from:
Notes:
- compatConfig was introduced to allow users to test Vue3 compatibility :
- Introduced to wikibase in Q2 2022 T304534 | https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikibaseLexeme/+/852893
From the EPIC T289017
- To test Vue 3 compatibility, set compatConfig: { MODE: 3 } as an option in each component file