Messages: web editor command

In our web client, it is easy and convenient to write and edit any long message in the built-in editor.

At any time, you can type webedit, write the text, press Save, and immediately insert it into the message being created -- for example, insert letter. You can also do the opposite -- first copy something to the clipboard, for example, from a letter: letter copy number. If you open the editor after this, the copied text will immediately appear there.