mute: migrating muted_threads to new mute list

This patch depends on: Adding ability to mute hashtag from SearchView

This is the last patch for the new mute list feature

- Removing MutedThreadsManager
- Adding system to migrate existing muted threads to new mute list

Closes: https://github.com/damus-io/damus/issues/1718
Closes: https://github.com/damus-io/damus/issues/856
Lighting Address: fishcharlie@strike.me
Signed-off-by: Charlie Fish <contact@charlie.fish>
Reviewed-by: William Casarin <jb55@jb55.com>
Signed-off-by: William Casarin <jb55@jb55.com>

damus/Views/Events/EventMutingContainerView.swift

@@ -27,7 +27,7 @@ struct EventMutingContainerView<Content: View>: View {
         self.damus_state = damus_state
         self.event = event
         self.content = content()
-        self._shown = State(initialValue: should_show_event(keypair: damus_state.keypair, hellthreads: damus_state.muted_threads, contacts: damus_state.contacts, ev: event))
+        self._shown = State(initialValue: should_show_event(contacts: damus_state.contacts, ev: event))
     }
     
     init(damus_state: DamusState, event: NostrEvent, muteBox: @escaping MuteBoxViewClosure, @ViewBuilder content: () -> Content) {
@@ -36,7 +36,7 @@ struct EventMutingContainerView<Content: View>: View {
     }
     
     var should_mute: Bool {
-        return !should_show_event(keypair: damus_state.keypair, hellthreads: damus_state.muted_threads, contacts: damus_state.contacts, ev: event)
+        return !should_show_event(contacts: damus_state.contacts, ev: event)
     }
     
     var body: some View {

damus/Views/SearchHomeView.swift

@@ -59,7 +59,8 @@ struct SearchHomeView: View {
                     return false
                 }
                 
-                if damus_state.muted_threads.isMutedThread(ev, keypair: self.damus_state.keypair) {
+                let event_muted = damus_state.contacts.mutelist?.mute_list?.event_muted_reason(ev) != nil
+                if event_muted {
                     return false
                 }