Create informative cookie banner

[jans510]

Banner, inform user that we use cookies

• link to cookie guidelines
• accept button to click the banner away
• save that the user clicked on the banner e.g. in cookie
• check if there are easy libraries available, ng-consent or others

[halbekanne]

maybe ngx-cookieconsent is an option, they have the option to "just tell users we're using cookies": https://tinesoft.github.io/ngx-cookieconsent/home