Review use of Materialize

changed milestone to %2.0a3

added part::frontend prio::1 type::refactoring workflow::blocked labels

Blocked by !43 (merged)

changed milestone to %1.0a1

mentioned in merge request !48 (merged)

assigned to @ZugBahnHof and unassigned @hansegucker

@ZugBahnHof Please also take care of #65 (closed) while resolving this issue.

closed via merge request !48 (merged)

mentioned in commit a8b1b29c

removed workflow::blocked label