Thumb-key cannot move cursor in message textbox when "Text formatting" is enabled

### Steps to reproduce

1. Install https://github.com/dessalines/thumb-key/ and set it as default keyboard.
2. Go to Thumb-Key settings -> Behavior, enabled Slide gestures.
3. Focus a textbox and type some characters. Confirm that you can swipe on the space bar left and right to move text cursor.
4. Open Element client, make sure rich text editor is enabled in Labs settings.
5. Open any room and tap the message textbox, type some characters, then try to swipe left and right on the space bar of Thumb-Key

### Outcome

#### What did you expect?

Text cursor moves left and right as my finger moves left and right.

#### What happened instead?

Text cursor doesn't move at all.

### Your phone model

Mi 10T Lite

### Operating system version

Android 12

### Application version and app store

1.6.20 from F-Droid

### Homeserver

_No response_

### Will you send logs?

No

### Are you willing to provide a PR?

No

### Additional information

The issue doesn't occur when text formatting is disabled.