Correctly implement the ckeditor

• correct widget templates for django_material
• maybe a custom material design skin

created merge request !426 (closed) to address this issue

mentioned in merge request !426 (closed)

added part::frontend prio::2 type::bug labels

unassigned @ZugBahnHof

The dev meeting decided to integrate the CkEditor with its original style for now.

created merge request !585 (merged) to address this issue

mentioned in merge request !585 (merged)

assigned to @ZugBahnHof

added board::ready label

mentioned in commit bf7dffbe

closed with merge request !585 (merged)