The keyword update function has a runtime that is quadratic
to the number of keywords, since the function examines all
keywords and has to search all previous keywords each time.
This commit ensures that this function is called only once
in ngOnInit instead of three times previously, as the
additional calls are redundant, reducing the administration
call time to one-third.

Closes #119

Changed ars-style buttons to material buttons to prevent forced font change (Helvetica -> Roboto) in header component.
[Ticket: #120]

fix ui for spellcheck error.

Ticket: #109

This commit ensures that when you open the tag
cloud settings, the bold and italic font sliders
are enabled according to the actual setting.

Closes #114

This commit deletes the console output of tag cloud settings
introduced for debug purposes, since it is uncommon to output
settings to be sent in production.

Closes #115

merge tag-cloud-administration into staging

See merge request arsnova/topic-cloud!50

# Conflicts:
#	src/app/components/shared/_dialogs/spacy-dialog/spacy-dialog.component.ts

[Ticket: #104]

fix updating the comments after adding words to the profanity list; storage profanitylist in localstorage as a json

Keywords to be selected

See merge request arsnova/topic-cloud!49

Fix Hover Effects.

Closes #111

See merge request arsnova/topic-cloud!48

Questions to be selected

See merge request arsnova/topic-cloud!47

Merge branch 'tag-cloud-configuration' of git.thm.de:arsnova/topic-cloud into tag-cloud-configuration