Physical keyboard no keybinding for sending a message

Steps to reproduce

1. Connect a physical keyboard to your Android
2. Type a message inside a conversation and hit "Enter"
3. A newline is added into the text field
4. Hit "Ctrl-Enter"
5. Nothing happens

Expected behaviour

Other chat apps on android tend to duplicate the behaviour of physical keyboards for "Enter" as desktop operating systems, i.e. "Enter" sends a message, while "Ctrl-Enter" adds a newline. I wouldn't even mind if it was reversed in Talk, the problem is there doesn't appear to be a way to send a message from they keyboard, I need to use the mouse or touchscreen.

Actual behaviour

"Enter" adds a newline. "Ctrl-Enter" does nothing.

Device information

Device: Lenovo Pad Pro 2021, bluetooth keyboard with PC layout.

Android version: 11

Talk version: 12.1.2

Server information

This looks like a UI issue so I'm not posting server info.

Start by reproducing the issue in an Android conversation with a physical keyboard, then trace the message input's handling of Enter and Ctrl-Enter. Done means a physical keyboard can send a message using a documented key combination while still allowing a newline.