Add Conversations tab to profiles

Changelog-Added: Added Conversations tab to profiles
Signed-off-by: Terry Yiu <git@tyiu.xyz>

damus/Models/ContentFilters.swift

@@ -10,8 +10,9 @@ import Foundation
 
 /// Simple filter to determine whether to show posts or all posts and replies.
 enum FilterState : Int {
-    case posts_and_replies = 1
     case posts = 0
+    case posts_and_replies = 1
+    case conversations = 2
 
     func filter(ev: NostrEvent) -> Bool {
         switch self {
@@ -19,6 +20,8 @@ enum FilterState : Int {
             return ev.known_kind == .boost || ev.known_kind == .highlight || !ev.is_reply()
         case .posts_and_replies:
             return true
+        case .conversations:
+            return true
         }
     }
 }