Textarea wrap won't shrink down after text field size reduced on FireFox

[Barina]

Either by deleting lines from the text area or by sending, the text area (the one that used to send messages) is shrink back to one line but its wrapper doesn't follow and stays large.

The same isn't applied when the text area has been maximized by adding new lines.

A workaround is to just mark a message in the chat and hit "cancel" button.

Currently only appearing on FireFox browser.

[Barina]

This is maybe also related to issue #3 findings.