Register swate in the microsoft add-in store

[kMutagene]

Now that we host a stable beta version of swate, we can think about making the usage easier by publishing it to the microsoft add-in appsource. The steps are outlined here:

https://docs.microsoft.com/de-de/office/dev/store/submit-to-appsource-via-partner-center

[Freymaurer]

As we are approaching the two year mark since this issue was created, i think we should try again to get Swate into the app store. Maybe @CMR248 or @Martin-Kuhl could have a look into the registration process or at least give an "okay" for creating an nfdi "developer" account according to the steps in the link from Kevin.

[kMutagene]

@Freymaurer am am still assigned to this, but i think this is not in my scope of work at the moment, so i'll assign you muhahah