[AndyB] Remove insert 1.0

Removes insert option from attachment thumbnail.

Some forums prefer that attached images are not inserted into the message.

(Before add-on is installed)
View attachment 99506



(After add-on is installed)
View attachment 99507



Question and answers:

Q: How can I prevent users from pasting images into the editor?
A: Install this add-on:

Click to expand...