Keyboard Shortcut To Navigate message not working

Description:

I had been using rocket chat for quite some time now and was exploring the keyboard shortcuts for the messages that I type. I faced a problem where if I tried to use the keyboard shortcut to navigate to the top or to the bottom of the message, it wouldn't work.

Steps to reproduce:

1. Go to any room
2. type a multi line message
3. try pressing alt+up or alt+down

Expected behavior:

the text cursor should have navigated to the top of the message on pressing alt + up according to shortcuts list.

Actual behavior:

nothing happens

Server Setup Information:

latest production version

• Version of Rocket.Chat Server:
• License Type:
• Number of Users:
• Operating System:
• Deployment Method:
• Number of Running Instances:
• DB Replicaset Oplog:
• NodeJS Version:
• MongoDB Version:

Client Setup

Mozilla Firefox 128.7.0esr
Debian GNU/Linux 12 (bookworm) x86_64

Additional context

Relevant logs:

Reproduce the issue in a room using a multiline message, then test Alt+Up and Alt+Down in Firefox on Debian. Trace the keyboard-shortcut handling for the message composer; the payload names no source file or test. Done means the cursor reaches the top or bottom as described in the shortcuts list.