v23.9.1

Changes to the app:

• Add button to show guide inside the app by @almarklein in #393
• Better in-app tips for fresh users by @almarklein in #394
• No tooltips on mobile devices by @almarklein in #395

For the self-hosters:

• Switch containers to unpriviliged service user by @danielhass in #357
• Update page to create credentials by @almarklein in #391