Merge improved mute functionality from Charlie

This merge adds a bunch of new features from charlie's work on the new
mutelist changes:

- Muted words

- Mute performance optimizations

- New mute list UI

I needed to make a few changes to fix the tests in this merge. Otherwise
it seems to work ok!

Thank to Charlie for getting all of this working after many rounds of
review!

* branch `mute` of https://github.com/damus-io/damus:
  mute: fix bug with duplicate Indefinite items in MuteDurationMenu
  mute: fix mute hashtag from search view if no existing mutelist
  mute: integrate new MutelistManager
  mute: adding MutelistManager.swift
  mute: add maybe_get_content function to NdbNote
  mute: fix bug where mutes can't be added without existing mutelist
  mute: fix issue with not being able to change mute duration
  mute: don't mutate string when adding hashtag
  mute: implement fast MuteItem decoder
  tags: add u64 decoding function
  mute: migrating muted_threads to new mute list
  mute: adding ability to mute hashtag from SearchView
  mute: updating UI to support new mute list
  mute: adding filtering support for MuteItem events
  mute: receiving New Mute List Type
  mute: migrate Lists.swift to use new MuteItem
  mute: add new UI views for new mute list
  mute: adding new structs/enums for new mute list

Changelog-Added: Add ability to mute words, add new mutelist interface (Charlie)

damus/Models/DamusState.swift

@@ -14,6 +14,7 @@ class DamusState: HeadlessDamusState {
     let likes: EventCounter
     let boosts: EventCounter
     let contacts: Contacts
+    let mutelist_manager: MutelistManager
     let profiles: Profiles
     let dms: DirectMessagesModel
     let previews: PreviewCache
@@ -28,20 +29,20 @@ class DamusState: HeadlessDamusState {
     let postbox: PostBox
     let bootstrap_relays: [String]
     let replies: ReplyCounter
-    let muted_threads: MutedThreadsManager
     let wallet: WalletModel
     let nav: NavigationCoordinator
     let music: MusicController?
     let video: VideoController
     let ndb: Ndb
     var purple: DamusPurple
-    
-    init(pool: RelayPool, keypair: Keypair, likes: EventCounter, boosts: EventCounter, contacts: Contacts, profiles: Profiles, dms: DirectMessagesModel, previews: PreviewCache, zaps: Zaps, lnurls: LNUrls, settings: UserSettingsStore, relay_filters: RelayFilters, relay_model_cache: RelayModelCache, drafts: Drafts, events: EventCache, bookmarks: BookmarksManager, postbox: PostBox, bootstrap_relays: [String], replies: ReplyCounter, muted_threads: MutedThreadsManager, wallet: WalletModel, nav: NavigationCoordinator, music: MusicController?, video: VideoController, ndb: Ndb, purple: DamusPurple? = nil) {
+
+    init(pool: RelayPool, keypair: Keypair, likes: EventCounter, boosts: EventCounter, contacts: Contacts, mutelist_manager: MutelistManager, profiles: Profiles, dms: DirectMessagesModel, previews: PreviewCache, zaps: Zaps, lnurls: LNUrls, settings: UserSettingsStore, relay_filters: RelayFilters, relay_model_cache: RelayModelCache, drafts: Drafts, events: EventCache, bookmarks: BookmarksManager, postbox: PostBox, bootstrap_relays: [String], replies: ReplyCounter, wallet: WalletModel, nav: NavigationCoordinator, music: MusicController?, video: VideoController, ndb: Ndb, purple: DamusPurple? = nil) {
         self.pool = pool
         self.keypair = keypair
         self.likes = likes
         self.boosts = boosts
         self.contacts = contacts
+        self.mutelist_manager = mutelist_manager
         self.profiles = profiles
         self.dms = dms
         self.previews = previews
@@ -56,7 +57,6 @@ class DamusState: HeadlessDamusState {
         self.postbox = postbox
         self.bootstrap_relays = bootstrap_relays
         self.replies = replies
-        self.muted_threads = muted_threads
         self.wallet = wallet
         self.nav = nav
         self.music = music
@@ -110,6 +110,7 @@ class DamusState: HeadlessDamusState {
             likes: EventCounter(our_pubkey: empty_pub),
             boosts: EventCounter(our_pubkey: empty_pub),
             contacts: Contacts(our_pubkey: empty_pub),
+            mutelist_manager: MutelistManager(),
             profiles: Profiles(ndb: .empty),
             dms: DirectMessagesModel(our_pubkey: empty_pub),
             previews: PreviewCache(),
@@ -124,7 +125,6 @@ class DamusState: HeadlessDamusState {
             postbox: PostBox(pool: RelayPool(ndb: .empty)),
             bootstrap_relays: [],
             replies: ReplyCounter(our_pubkey: empty_pub),
-            muted_threads: MutedThreadsManager(keypair: kp),
             wallet: WalletModel(settings: UserSettingsStore()),
             nav: NavigationCoordinator(),
             music: nil,