Staging

See merge request arsnova/frag.jetzt!770

Merge branch '754-add-questionwall-introduction-text-add-indicator-when-filtered-comment-list-does-not-contain' into 'staging'

add introduction, add no questions found when list is empty, i18n

Closes #754

See merge request arsnova/frag.jetzt!769

add animation

Closes #745

See merge request arsnova/frag.jetzt!768

Staging

See merge request arsnova/frag.jetzt!767

Resolve "Keep the brainstorming heading as is"

Closes #747

See merge request arsnova/frag.jetzt!764

Staging

See merge request arsnova/frag.jetzt!763

Resolve "Initial topic cloud configuration is broken"

Closes #749

See merge request arsnova/frag.jetzt!762

Staging

See merge request arsnova/frag.jetzt!761

Resolve "Backdrop in comment answer is not working properly"

Closes #748

See merge request arsnova/frag.jetzt!760

Staging

See merge request arsnova/frag.jetzt!759

Resolve "Participants see all cloud configuration options"

Closes #741

See merge request arsnova/frag.jetzt!758

Staging

See merge request arsnova/frag.jetzt!757

Resolve "questionwall fix No.3"

Closes #744

See merge request arsnova/frag.jetzt!756

fix questionwall key support & focus bug

Closes #742

See merge request arsnova/frag.jetzt!754

fix focus bug

See merge request arsnova/frag.jetzt!750

Resolve "Configure the topic cloud for brainstorming"

Closes #731

See merge request arsnova/frag.jetzt!749