Add muting and mutelists

- Filter muted posts from feed on mute
- List muted users in sidebar

Changelog-Added: Added ability to block users

damus/Nostr/NostrKind.swift

@@ -19,4 +19,5 @@ enum NostrKind: Int {
     case channel_create = 40
     case channel_meta = 41
     case chat = 42
+    case list = 30000
 }