Adding support for double-click event handler on images

[ClementEXWiki]

Is your feature request related to a problem? Please describe. I'd like to open a fully-featured edition modal when double-clicking on an image, instead of requiring the user to use the toolbar.

Describe the solution you'd like Allow registering a double-click event handler for inline and block images.

Describe alternatives you've considered N/A

Additional context N/A