Retrieving categories from database

[DotNetDublin]

Hi everyone

I've created the branch mediatr-categories in order to update the AddTimeEntry.razor component to retrieve the categories from the database in the same manner are retrieving time entries.

It's working however there are serious caveats 😊

Firstly I'm not sure whether I should have added to ITimeEntryApi or created ICategoryApi at first I created ICategoryApi but then doubled back as I wasn't sure how I would register it on Program.cs and Startup.cs. Should there be a line per API interface created?

I also seem to have broken Swagger.

On the plus side the categories are being retrieved from the database and once you've updated the database you can find seed data here.