diaspora* 0.7.16.0

Security

• Update rails to fix CVE-2022-23633 #8336

Refactor

• Cache local posts/comments count for statistics #8241
• Fix html-syntax in some handlebars templates #8251
• Remove chat_enabled flag from archive export #8265
• Change thumbnails in image slideshow to squares #8275
• Replace uglifier with terser for JS compression #8268

Bug fixes

• Ensure the log folder exists #8287
• Limit name length in header #8313
• Fix fallback avatar in hovercards #8316
• Use old person private key for export if relayable author migrated away #8310

Features

• Add tags to tumblr posts #8244
• Add blocks to the archive export #8263
• Allow points and dashes in the username #8266
• Add support for footnotes in markdown #8277
• Send AccountMigration if receiving message to a migrated account #8288
• Add podmin mail address to the footer #8242
• Add username to password-reset mail #8037
• Resend account migration and deletion for closed recipients #8309
• Add sharing status to hovercards #8317
• Migrate photo URLs and cleanup old uploaded photos #8314