Notification Decoration Revised (#5312)

1. I removed the grey dots for when there is activity in rooms set to mentions or mute.
2. For all unread rooms, I made the message preview text bold for better legibility
3. For rooms with no unreads, I made the font weight regular, again for legibility

We have also mergeg the new room list activity rendering with the existing feature hide unread badge feature flag and provide 3 variations: current production behavior, no badge but bolding, and no bolding and no badge

ElementX/Sources/Application/Settings/AppSettings.swift

@@ -84,7 +84,7 @@ final class AppSettings {
         case automaticBackPaginationEnabled
         
         // Doug's tweaks 🔧
-        case hideUnreadMessagesBadge
+        case roomListActivityVisibility
         case hideQuietNotificationAlerts
         
         case developerOptionsEnabled
@@ -358,8 +358,8 @@ final class AppSettings {
     
     // MARK: - Home Screen
     
-    @UserPreference(key: UserDefaultsKeys.hideUnreadMessagesBadge, defaultValue: false, storageType: .userDefaults(store))
-    var hideUnreadMessagesBadge
+    @UserPreference(key: UserDefaultsKeys.roomListActivityVisibility, defaultValue: .current, storageType: .userDefaults(store))
+    var roomListActivityVisibility: RoomListActivityVisibility
     
     // MARK: - Room Screen