The instructions on the wiki say to search and install the Kavita extension from inside the app, but that information is incomplete. Ever since Mihon was forked from Tachiyomi, the app doesn't include any extension repository anymore. Therefore, the Kavita extension cannot be found. The wiki should include an extra step to explain how to add the Kavita extension repository to Mihon.
The instructions on the wiki say to search and install the Kavita extension from inside the app, but that information is incomplete. Ever since Mihon was forked from Tachiyomi, the app doesn't include any extension repository anymore. Therefore, the Kavita extension cannot be found. The wiki should include an extra step to explain how to add the Kavita extension repository to Mihon.