Create issues from Milestone view similar to Boards view

Description

It would be great if the lists from the Milestones view would have a "+" icon to quickly add new issues (that automatically adds to the current milestone) as in the Boards view.

Proposal

Links / references

Documentation blurb

Overview

What is it? Why should someone use this feature? What is the underlying (business) problem? How do you use this feature?

Use cases

Who is this for? Provide one or more use cases.

Feature checklist

Make sure these are completed before closing the issue, with a link to the relevant commit.

Edited by Mark Fletcher