[Feature request] Option to deactivate automatic hyperlinks in email composition

[MiMoHo]

Prerequisites

• I have searched for duplicate or closed feature requests
• I have searched for plugins that provide already provide the feature

Proposal

There is currently no settings option for the user in "Composing Messages" to deactivate automatic transformation of URLs to clickable hyperlinks.

Motivation and context

Hyperlinks bare the risk of phishing, tracking or misleading redirection which is intransparent to the receiver. Therefore, I wish to send URLs as plain text in HTML messages. However, they always convert to hyperlinks automatically which I have to remove manually each time. In order to highlight the URL and indicate where it ends, I give it a different color and two spaces after. However, putting in a space character after the URL triggers hyperlink conversion again.
As a webmail user, I cannot make changes to the config like probably many other Roundcube users. Hence, I suggest a settings option to deactivate automated hyperlinking.

[alecpl]

This is the 'autolink' plugin of TinyMCE. It shouldn't be hard to implement such an option. A pull request would be welcome.