Use an outlined pencil for the edit icon, same as the current proposed design for the issue page.
Edge cases
- Edit icon should not be displayed if the user does not have permission to edit the title and description of an epic.
- Edit icon currently disappears when in edit mode. This should continue.
![edit](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==)