Add the emoji picker button to the message input

### Your use case

#### What would you like to do?
I would like to be able to open an emoji picker and add an emoji to my message.

#### Why would you like to do it?
Because not all keyboards support emoji picking.

#### How would you like to achieve it?

### Have you considered any alternatives?

- Using a keyboard that has a built-in emoji picker.
- Pasting an emoticon from the clipboard

### Additional context

Nope

### Are you willing to provide a PR?

No