feat(docs): add GitHub About suggestion with repository description and topics

Merge branch 'master' of https://github.com/nerufuyo/nerubot

feat(music): implement AFK mode for voice channel management with join and leave commands

feat(guilds): add support for syncing text channels in guild information

feat(music): enhance playlist loading with fallback search strategy for missing tracks

feat(music): fix skip functionality to handle invalid payloads and improve track loading strategies

feat(donate): add /donate command to support NeruBot development with donation links

feat(music): add pagination support for playlist display and improve voice channel management

feat(music): add commands to manage playlists, including adding tracks and removing songs by position

feat(ai): implement Redis-based caching for AI provider responses

feat(music): enhance playback handling with YouTube OAuth support and improve track skipping logic

feat(env): add YouTube OAuth configuration options to environment file

feat(music): implement consecutive track failure handling to prevent skip-storms

refactor(moderation): standardize field alignment in Warning struct

feat(discord): add command handlers for bot info, server info, user info, moderation, and utility functions