Make search for projects case insensitive

### What does this MR do?

This MR makes the search for projects case insensitive.

### Why was this MR needed?
Currently the search for projects is case sensitive.
You can test this on gitlab.com with the search string "perforce" for example.
* perforce returns 2 projects
* Perforce returns 5 projects
* PERFORCE returns 0 projects

This makes it harder to find the projects you are looking for.
With this MR users can find more projects, since they don't need to worry about not seeing some projects just because of an upper letter.

@dblessing Can you take a look at this? :)

See merge request !296