App authors information is not updated from info.xml

[tcitworld]

Please provide the following details for error reports from https://apps.nextcloud.com/. Ignore in case of a feature request.

Details

The listed authors and co-maintainers don't correspond to the one listed in the latest info.xml file.

Steps to reproduce

1. Access https://apps.nextcloud.com/apps/calendar
2. Check the authors in the latest info.xml information file https://github.com/nextcloud/calendar/blob/v3.2.2/appinfo/info.xml

[joshtrichards]

Related: #117

[edward-ly]

Just to clarify, the "author" listed in the app store is actually the name of whoever holds the app store account that owns the app, which we recognize is not necessarily the same as the author listed in info.xml. Also, an app cannot belong to more than one app store account, while multiple authors can be listed in info.xml, thus it is not possible the two to be exactly the same. The app store does keep a list of all the app authors, though, but I don't remember if there was a reason for displaying the app account owner in the store page. Regardless, we can certainly add the authors list to the page on top of showing the account owner, if not replace it entirely.