[FEAT] Advanced link tests

With the link tests added in 2a230fc4031e5f116aa954177be22dc1603dd410
this removes all potentional failures added:
- Just the ":"
- If the title contains a section and a namespace prefix but no title
  (this is already working when there is no section)
- If the (non-)talk page of the title is actually a title in another
  namespace.
  Example: Talk:File:Test.png would've the non-talk page File:Test.png
           but it's talk page would be File talk:Test.png

Bug: 72681
Change-Id: I3923de0d2930e44ee656e862405b8d654b896fdf