[native] Added displaying labels to InlineEngagement

Summary: Added possibility to label the messages to display ‘Edited' label in next diffs.

Test Plan:

• Run the app.
• Added the label to every message.
• Checked if the labels are displayed correctly both with text messages and with images.
• Checked if Reactions/Threads are also correctly positioned next to the label.
• Checked if labels in a few messages in a row do not take too much space.
• Checked displaying on both the left and right side of the chat.
• Checked displaying on both iOS and Android.
• Checked displaying on both dark and light mode.

Screenshots (iOS / Android):

• Light mode:

• Dark mode:

• Few messages in a row:

• Image:

Reviewers: michal, inka, ginsu, ashoat

Reviewed By: ashoat

Subscribers: ashoat, tomek, atul

Differential Revision: https://phab.comm.dev/D7065