D23848: Add Breeze icons for Jupyter Notebook files

[Alex Debus]

alexde edited the test plan for this revision.

REPOSITORY
  R266 Breeze Icons

REVISION DETAIL
  https://phabricator.kde.org/D23848

To: alexde, #vdg
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns