v2.2.0

What's Changed

• docs: README quickstart, and a Buy Me a Coffee link by @kalfasyan in #5
• Move references to the selfhostit organization by @kalfasyan in #6
• docs: create pb_data before the first start by @kalfasyan in #7
• Welcome invited people step by step, with who invited them by @kalfasyan in #8
• Run on a Raspberry Pi, and set port and time zone in .env by @kalfasyan in #9
• Show the app's main flow in a screenshot at the top of the README by @kalfasyan in #10
• Harden CI and rate-limit sign-in and new decisions by @kalfasyan in #11
• Run the container without extra privileges by @kalfasyan in #17
• Content Security Policy on the web app by @kalfasyan in #18
• Only releases move :2, attested images, and a security section in the README by @kalfasyan in #19

Full Changelog: v2.1.0...v2.2.0