mute: integrate new MutelistManager

This patch is slightly large (I think still within the guidelines tho) ,
but also pretty straightforward. I thought for a while about how I could
split this up in a straightforward way, and I couldn’t come up with
anything without breaking intermediate builds.

- Deleted a lot of old/unnecessary code (ie. the Collection extension
  for MuteItem, since we’re now using the MutelistManager sets)

- Changed damus_state.contacts to damus_state.mutelist_manager for all
  mute list manager work

- Updated MutelistView to take advantage of new code (this is probably
  the largest change in this patch)

Lighting-Address: fishcharlie@strike.me
Signed-off-by: Charlie Fish <contact@charlie.fish>
Reviewed-by: William Casarin <jb55@jb55.com>
Link: 20240210163650.42884-4-contact@charlie.fish
Signed-off-by: William Casarin <jb55@jb55.com>

damus/Util/Router.swift

@@ -14,7 +14,7 @@ enum Route: Hashable {
     case Relay(relay: String, showActionButtons: Binding<Bool>)
     case RelayDetail(relay: String, metadata: RelayMetadata?)
     case Following(following: FollowingModel)
-    case MuteList(mutelist_items: Set<MuteItem>)
+    case MuteList
     case RelayConfig
     case Script(script: ScriptModel)
     case Bookmarks
@@ -58,8 +58,8 @@ enum Route: Hashable {
             RelayDetailView(state: damusState, relay: relay, nip11: metadata)
         case .Following(let following):
             FollowingView(damus_state: damusState, following: following)
-        case .MuteList(let mutelist_items):
-            MutelistView(damus_state: damusState, mutelist_items: mutelist_items)
+        case .MuteList:
+            MutelistView(damus_state: damusState)
         case .RelayConfig:
             RelayConfigView(state: damusState)
         case .Bookmarks:
@@ -139,9 +139,8 @@ enum Route: Hashable {
             hasher.combine(relay)
         case .Following:
             hasher.combine("following")
-        case .MuteList(let users):
+        case .MuteList:
             hasher.combine("muteList")
-            hasher.combine(users)
         case .RelayConfig:
             hasher.combine("relayConfig")
         case .Bookmarks: