streamline the table view and make it possible to search

[PKuhlmay]

Maybe the table view for the overview could be inside one big table with some kind of filtering and sorting

• [x] make the table searchable
• [NO] show all elements in only one table (discuss this first)
• [x] try to make all columns one size

[krausandre]

IMHO, since this are different types, it should be separated tables.

[PKuhlmay]

I'll close this for now as we keep the different tables