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/Timeline/Fixtures/RoomTimelineItemFixtures.swift

@@ -78,9 +78,9 @@ enum RoomTimelineItemFixtures {
         TextRoomTimelineItem(id: UUID().uuidString,
                              text: "",
                              attributedComponents: [
-                                 AttributedStringBuilderComponent(attributedString: "Hol' up", isBlockquote: false),
-                                 AttributedStringBuilderComponent(attributedString: "New home office set up!", isBlockquote: true),
-                                 AttributedStringBuilderComponent(attributedString: "That's amazing! Congrats 🥳", isBlockquote: false)
+                                 AttributedStringBuilderComponent(attributedString: "Hol' up", isBlockquote: false, isReply: false),
+                                 AttributedStringBuilderComponent(attributedString: "New home office set up!", isBlockquote: true, isReply: false),
+                                 AttributedStringBuilderComponent(attributedString: "That's amazing! Congrats 🥳", isBlockquote: false, isReply: false)
                              ],
                              timestamp: "5 PM",
                              groupState: .single,