OXUD-1013 Update: Remove '11.3 Authentizität von E-Mails anzeigen' from the Docu

- Wrong link position: moved from ox.appsuite.user.related.firststeps.gui.content to ox.appsuite.user.related.firststeps.gui.foldertree
- ox.appsuite.user.related.firststeps.gui.menubar: Add some App specific links
- ox.appsuite.user.concept.calendar.gui.settingsmenu: Add a missing sentence
- ox.appsuite.user.sect.portal.gui.driveclients: Remove profiling 'userlevel="full_pim"'
- remove ox.appsuite.user.sect.portal.gui.personalize and related topics
- ox.appsuite.user.sect.portal.gui: Content updates

Updates since version #1
-OXUD-1007 Check and update the topic of sending encrypted emails
- OXUD-1008 Various updates for New button, foldertree other findings
- OXUD-1009 Add conformance attributes for the 'switchboard' related topics

Updates since draft #3
- OXUD-1006 Update the function description in the settings menu for all Apps
- OXUD-1005 Remove the Topic 'Kalender von Interesse abonnieren' from the Docu
- Tiny terminology polishing.
- OXUD-1003 Update: mention 'distribution lists' in both address book pickers
- OXUD-1001 Updates for marking e-mails & some DocBook code cleanup

Add stable tag to nginx base image

See merge request frontend/user-guide!4

Distroless / Updated deps / Update helm deps

See merge request frontend/user-guide!3

- OXUD-999 Add a topic about printing files via the viewer
- OXUD-1000 Enhancement: unify the wording for choosing an menu item

- Various fixes and content updates
- Removed Chat topics
- svg icon added

since we don't expect admins to collect metrics for those services,
we provide them with some sensible defaults.

- OXUD-973 Bugfix for OXUIB-1040 Cosmetic changes needed in the help section
- OXUD-938 Topics to check regarding UI redesign
- OXUD-972 Update the description of the folder tree behavior
- OXUD-954 Update the docu regarding UI redesign in Drive and in other Apps
- OXUD-947 Update all search topics regarding the UI redesign
- Terminology update

integrate ox-common chart

See merge request frontend/user-guide!2