Mentions are now separated into 'this room' and 'all rooms'
tab., which allows the user to filter on the current room
if they desire.  Should add additional logic in the future
to show which room the mention was in the for the 'all rooms'
view.

I'm not sure, if that is the right way, but Qt doesn't really have a way
to format custom localised dates, so I tried to find the closest
approximations to what we currently have.

Relates to #69

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

removed type=unfinished for translated items

Currently translated at 100.0% (34 of 34 strings)

Translation: Nheko/Nheko
Translate-URL: https://translate.nordgedanken.de/projects/nheko/nheko/de/