Merge 'tag-cloud' into staging

Closes #213 and #212

See merge request arsnova/topic-cloud!121

[Ticket: #213]

[Ticket: #212]

Merge 'tag-cloud' into staging

Closes #216, #215, and #214

See merge request arsnova/topic-cloud!120

[Merge Request: !120]

# Conflicts:
#	src/app/components/shared/_dialogs/create-comment/create-comment.component.html

Some changes were not updated correctly
and wrong data were displayed in the preview.

[Ticket: #214][Ticket: #215][Ticket: #216]

Merge 'tag-cloud' into staging

Closes #210 and #211

See merge request arsnova/topic-cloud!118

[Ticket: #210]

[Merge Request: !117][Ticket: #211]

Merge 'tag-cloud' into staging

See merge request arsnova/topic-cloud!117

[Ticket: #207]

Smarter debouncing has been added so that bulk
updates are handled in a more natural way.

[Ticket: #207]

Changes arsnova.click url to antworte.jetzt

Closes #208

See merge request arsnova/topic-cloud!116

Smarter debouncing has been added so that bulk
updates are handled in a more natural way.

Merge 'tag-cloud' into staging

Closes #206

See merge request arsnova/topic-cloud!114