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/Other/HTMLParsing/AttributedStringBuilder.swift

@@ -94,7 +94,11 @@ struct AttributedStringBuilder: AttributedStringBuilderProtocol {
                 attributedString.removeSubrange(range)
             }
             
-            return AttributedStringBuilderComponent(attributedString: attributedString, isBlockquote: value != nil)
+            let isBlockquote = value != nil
+            /// This is a temporary workaround until replies are retrieved from the SDK.
+            let isReply = isBlockquote && attributedString.characters.starts(with: "In reply to @")
+            
+            return AttributedStringBuilderComponent(attributedString: attributedString, isBlockquote: isBlockquote, isReply: isReply)
         }
     }