Headline Anchor - Change Icon

[luke-]

For this plugin (used in Wiki), the Icon should be changed: https://github.com/humhub/humhub/blob/master/protected/humhub/modules/content/widgets/richtext/ProsemirrorRichText.php#L45

• change the pilcrow icon for the fa-chain icon

when user clicks the fa-chain-icon then

• link is automatically pasted into clipboard and
• scroll (as it is)
• snackbar on the bottom appears with message: Copied to clipboard. Design is the typical green checkmark and text.
• 

[yurabakhtin]

• snackbar on the bottom appears with message: Copied to clipboard. Design is the typical green checkmark and text.

I am not sure this point can be done from the humhub-prosemirror side, because it works by using of this separate module https://github.com/humhub/humhub/blob/master/static/js/humhub/humhub.ui.status.js with code like this:

humhub.modules.ui.status.success('Copied')

and the text Copied should be translatable, it may be defined in some option on init the RichText field.

or example here https://github.com/humhub/humhub/blob/master/protected/humhub/modules/content/resources/js/humhub.content.js#L15:

var status = require('ui.status');
status.error(response.response.error);