Further design updates to the timeline. (#524)

- Decryption banner on the timeline
- Bubble colours
- Background insets
- Multiline composer corner radius
- Read marker
- GIF indicator
- Reactions shape
- Use RoomTimelineViewLabelStyle everywhere possible
- Only set a line limit on reply quotes, allow all the lines for regular quotes.
- Message label icons
- Yes/No button casing
- Make sender profiles immutable.
- Enable copy link and invite buttons.
- Fix layout loop detecting multiline composer text.
- Add animation to the encryption banner.

ElementX/Sources/Services/Room/RoomProxyProtocol.swift

@@ -51,6 +51,8 @@ protocol RoomProxyProtocol {
     
     var avatarURL: URL? { get }
     
+    var permalink: URL? { get }
+    
     func loadAvatarURLForUserId(_ userId: String) async -> Result<URL?, RoomProxyError>
     
     func loadDisplayNameForUserId(_ userId: String) async -> Result<String?, RoomProxyError>
@@ -75,6 +77,17 @@ protocol RoomProxyProtocol {
 }
 
 extension RoomProxyProtocol {
+    var permalink: URL? {
+        if let canonicalAlias, let link = try? PermalinkBuilder.permalinkTo(roomAlias: canonicalAlias) {
+            return link
+        } else if let link = try? PermalinkBuilder.permalinkTo(roomIdentifier: id) {
+            return link
+        } else {
+            MXLog.error("Failed to build permalink for Room: \(id)")
+            return nil
+        }
+    }
+    
     func sendMessage(_ message: String) async -> Result<Void, RoomProxyError> {
         await sendMessage(message, inReplyTo: nil)
     }