Edit cloud account name from dashboard

[infinitewarp]

As a customer, I want to be able to edit my cloud account's name from the dashboard view so that I can organize things nicely.

This adds a ellipsis/hamburger menu thing on the right end of each cloud account summary row, and within that menu is a single new item "Edit name" that presents some kind of input to edit the cloud account name.

Acceptance Criteria

• Verify the "Edit name" menu item exists.
• Verify submitting a new name updates the backend so that subsequent requests include the new name.
• Verify that an issue for tracking integration tests exists and is referenced here.

Assumptions and Questions

• What does the UI look like? This is not well defined in the mockup at the time of this writing: https://redhat.invisionapp.com/share/UFI078IZVAW#/screens/296433286
  • Ben and David will work through the details here. Probably just a modal overlay. Easy!