Merge branch 'main' into api_edit_separation

diff --cc docs/src/contributing_websocket_http_api.md
Simple merge

diff --cc server/Cargo.lock
Simple merge

diff --cc ui/src/components/main.tsx
Simple merge

diff --cc ui/src/components/markdown-textarea.tsx
Simple merge

diff --cc ui/src/components/post.tsx
Simple merge

diff --cc ui/src/interfaces.ts
Simple merge

diff --cc ui/translations/en.json
Simple merge