qqc2-breeze-style should use bugs.kde.org for bug tracking

[David Redondo]

Hi, 

I think when the gitlab migration happened, it was agreed that bug tracking 
still happens on bugs.kde.org and gitlab issues will eventually replace 
phabricator tasks.

The readme of qqc2-breeze-style includes: 
> # Bug Reports/Feature Requests/Issues:
>
>File your reports/requests here: https://invent.kde.org/plasma/qqc2-breeze-style/-/issues

I think at least all repos part of plasma should stay consistent on where bugs 
are reported and qqc2-breeze-style should use bugzilla, too.

Thoughts on this?

Regards,
David