Add a shortcut to Move beginning and ending of the message

[thepiyush-303]

As an EmbeddedChat developer

I need to: add a shortcut key to move beginning and ending of the large message using (alt + arrowUp) for moving at the starting of the message and adding (alt + arrowDown) to move to the end of the message.
So That:

Acceptance Criteria

• short keys with arrowUp and arrowDown
• short keys with arrowRight and arrowLeft