Introduced MemberDetailsProvider, caching user avatar urls and images. Various other tweaks and improvements.

ElementX/Sources/Services/Timeline/TimelineItems/Items/ImageRoomTimelineItem.swift

@@ -0,0 +1,23 @@
+//
+//  ImageRoomTimelineItem.swift
+//  ElementX
+//
+//  Created by Stefan Ceriu on 11/03/2022.
+//  Copyright © 2022 Element. All rights reserved.
+//
+
+import Foundation
+import UIKit
+
+struct ImageRoomTimelineItem: EventBasedTimelineItemProtocol, Identifiable, Equatable {
+    let id: String
+    let text: String
+    let timestamp: String
+    let shouldShowSenderDetails: Bool
+    
+    let sender: String
+    var senderAvatar: UIImage?
+    
+    let url: String?
+    var image: UIImage?
+}

ElementX/Sources/Services/Timeline/TimelineItems/Items/SeparatorRoomTimelineItem.swift

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+//
+//  SectionSeparatorTimelineItem.swift
+//  ElementX
+//
+//  Created by Stefan Ceriu on 11/03/2022.
+//  Copyright © 2022 Element. All rights reserved.
+//
+
+import Foundation
+
+struct SeparatorRoomTimelineItem: DecorationTimelineItemProtocol, Identifiable, Equatable {
+    let id: String
+    let text: String
+}

ElementX/Sources/Services/Timeline/TimelineItems/Items/TextRoomTimelineItem.swift

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+//
+//  TextRoomTimelineItem.swift
+//  ElementX
+//
+//  Created by Stefan Ceriu on 11/03/2022.
+//  Copyright © 2022 Element. All rights reserved.
+//
+
+import Foundation
+import UIKit
+
+struct TextRoomTimelineItem: EventBasedTimelineItemProtocol, Identifiable, Equatable {
+    let id: String
+    let text: String
+    let timestamp: String
+    let shouldShowSenderDetails: Bool
+    
+    let sender: String
+    var senderAvatar: UIImage?
+}