Fix room list heroes label format

- change from `Alice, Bob and Charlie` to `Alice, Bob, Charlie and 42 others` (when applicable)

ElementX/Sources/Services/Room/RoomSummary/RoomSummary.swift

@@ -38,7 +38,10 @@ struct RoomSummary {
     let name: String
     let isDirect: Bool
     let avatarURL: URL?
+    
     let heroes: [UserProfileProxy]
+    let activeMembersCount: UInt
+    
     let lastMessage: AttributedString?
     let lastMessageDate: Date?
     let unreadMessagesCount: UInt
@@ -81,7 +84,18 @@ extension RoomSummary: CustomStringConvertible {
             return alias
         }
         
-        return heroes.compactMap(\.displayName).formatted(.list(type: .and))
+        guard heroes.count > 0 else {
+            return ""
+        }
+        
+        var heroComponents = heroes.compactMap(\.displayName)
+        
+        let othersCount = Int(activeMembersCount) - heroes.count
+        if othersCount > 0 {
+            heroComponents.append(L10n.commonManyMembers(othersCount))
+        }
+        
+        return heroComponents.formatted(.list(type: .and))
     }
 }
 
@@ -93,7 +107,10 @@ extension RoomSummary {
         name = string
         isDirect = true
         avatarURL = nil
+        
         heroes = []
+        activeMembersCount = 0
+        
         lastMessage = AttributedString(string)
         lastMessageDate = .mock
         unreadMessagesCount = hasUnreadMessages ? 1 : 0

ElementX/Sources/Services/Room/RoomSummary/RoomSummaryProvider.swift

@@ -270,6 +270,7 @@ class RoomSummaryProvider: RoomSummaryProviderProtocol {
                            isDirect: roomInfo.isDirect,
                            avatarURL: roomInfo.avatarUrl.flatMap(URL.init(string:)),
                            heroes: roomInfo.heroes.map(UserProfileProxy.init),
+                           activeMembersCount: UInt(roomInfo.activeMembersCount),
                            lastMessage: attributedLastMessage,
                            lastMessageDate: lastMessageDate,
                            unreadMessagesCount: UInt(roomInfo.numUnreadMessages),