[3.0] Meta-issue for GraphQL back-end and Vue.js frontend

This issue is a collection for all issues related to the 3.0 refactoring into a GrpahQL+Vue.js based approach.

• Basic Vuetify introduction #696 (closed)
• Introduce GraphQL #700 (closed)

assigned to @nik

created branch 697-3-0-meta-issue-for-graphql-back-end-and-vue-js-frontend to address this issue

mentioned in merge request !1046 (closed)

mentioned in issue #441 (closed)

changed the description

Now tracked only in !1045 (merged)

closed