Fix input field not disabled while a chat message is being sent
Fix input field not disabled while a chat message is being sent

The problem was caused by trying to disable the div using the "disabled"
property, which works only on real input fields; when using a content
editable div the way to disable it is by setting "contenteditable" to
"false".

Signed-off-by: Daniel Calviño Sánchez <bd7629e975cc0e00ea7cda4ab6a120f2ee42ac1b@gmail.com>

nextcloud/spreed,nextcloud/spreed,nextcloud/spreed