use sftp also for beta deployment, removed surge

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal-backend!9

fix nexus upload

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal-backend!8

nexus release and snapshot support, bugfix for tag build

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal-backend!6

MESSENGER-5315

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal-backend!7

new animation and icon

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal-backend!5

theme is fixed to dark mode

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal-backend!3

add bwi imprint, disable search and language selector

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal-backend!4

sftp upload

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal-backend!2

initial content for backend learning portal

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal-backend!1

minor text and icon updates

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal!7

more content updates

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal!5

first content, first color theming and running pipeline

See merge request bwmessenger/learning-portal/bundesmessenger-learning-portal!4