Lemmy Release v0.16.7 - A few bug fixes

A few bug fixes:

• Fix missing auth on new post refresh. (#764)
• Change CSP rule for connect-src (websocket) to wildcard (fixes #730) (#737)
• Increase default search rate limit. (#2424)
• Rejected federated pm from blocked users (fixes #2398) (#2408)
• Handle Like, Undo/Like activities from Mastodon, add tests (fixes #2378) (#2380)
• Revert "Handle Like, Undo/Like activities from Mastodon, add tests (fixes #2378) (#2380)"
• Handle Like, Undo/Like activities from Mastodon, add tests (fixes #2378) (#2380)
• Dont allow login if account is banned or deleted (fixes #2372) (#2374)
• Fix panics in search_by_apub_id() (fixes #2371) (#2373)