Resolve "Superfluous space causes horizontal scrolling"

Closes #710

See merge request arsnova/frag.jetzt!711

Merge branch '678-move-the-main-features-to-the-header-of-the-question-list-in-desktop-view' into 'staging'

Resolve "Move the main features to the header of the question list in desktop view"

Closes #678

See merge request arsnova/frag.jetzt!708

Merge branch '708-with-a-direct-link-the-room-in-the-url-path-is-lost-if-a-motd-appears-beforehand' into 'staging'

Resolve "With a direct link, the room in the URL path is lost if a MotD appears beforehand"

Closes #708

See merge request arsnova/frag.jetzt!710

Merge branch 'staging' into 678-move-the-main-features-to-the-header-of-the-question-list-in-desktop-view

# Conflicts:
#	src/app/components/shared/header/header.component.html

[Ticket: #678]

Resolve "Lecturer's questions are not color-coded in the student view"

Closes #701

See merge request arsnova/frag.jetzt!705

Resolve ""Delete questions" deletes room instead"

Closes #705

See merge request arsnova/frag.jetzt!704

Resolve "New filter and sorting presets"

Closes #702

See merge request arsnova/frag.jetzt!702

fix layout bug

Closes #698

See merge request arsnova/frag.jetzt!703

Resolve "Address the bonus mail to the creator with CC to all moderators"

Closes #704

See merge request arsnova/frag.jetzt!700

Resolve "Make messages of the moderation stand out"

Closes #703

See merge request arsnova/frag.jetzt!701

add i18n, set style

Closes #697

See merge request arsnova/frag.jetzt!699

Resolve "Implement DeepL to the keyword updates"

Closes #693

See merge request arsnova/frag.jetzt!698