Custom dialogs to edit links and images

[dselman]

The toolbar allows inserting both links and images. Both would benefit from a custom dialog to insert new links or to edit existing links.

[jolanglinais]

Moved to markdown-editor, relates to accordproject/markdown-editor#293

[jolanglinais]

@Michael-Grover any thoughts on this?

From @dselman:

Because images are just specialized links in Markdown, perhaps we can also use for to edit images?

[Michael-Grover]

accordproject/markdown-editor#293 @dselman there is a custom dialogue for links here

Because images are just specialized links in Markdown, perhaps we can also use for to edit images?

if someone wants to edit an image wouldn't they just delete it and add a new one?

[jolanglinais]

Relates to #29

[K-Kumar-01]

@dselman
Keeping the perspective of the image, does it mean that when an image is clicked a popup similar to hyperlink should open up with a field to edit the image URL?

[jolanglinais]

@K-Kumar-01 yes I think that's the right idea.

[K-Kumar-01]

@irmerk @dselman
I have created a PR for the issue. Let me know if there are any changes required.