Comment editing: front end

[gibbsmaya]

Front end task for #945

Acceptance criteria

• Private comments in django app allow editing by the author of the comment
• Reviewers and Staff comments in django app allow editing by the author of the comment
• Internal comments in django app allow editing by the author of the comment
• Public comments in django app allow editing by the author of the comment
• Edit button visible on comment (styled as per edit button on submission detail page)
• Inline editing of comment with 'submit' and 'cancel' button
• Updated comment to display on edit submission
• Last edited date to be displayed alongside post date
• Comment sort order remains as it currently is (by original post date)

QA criteria
Dev:

• checked feature meets acceptance criteria/conforms exactly to the specification.
• provided good unit test coverage (if this is non-trivial behaviour).
• checked all tests for the project pass with this feature enabled.
• checked code conforms to the project coding standards.
• had code reviewed by another developer and resolved any issues raised.
• tested this feature as an end user of the website/app (Can I get to it? Is it useable? Can I break it? Does it work in an end-to-end context?)
• checked that this feature works on the server/s I am deploying it to.

QA:

• tested this feature as a front end user and it meets the acceptance criteria/conforms to the specification and design.
• checked that the feature works on the server/s deployed to

[chris-lawton]

This is now on dev and ready for testing.

Head to https://dev-apply.opentech.fund/apply/submissions/, pick a submission and you will be able to edit any comment that you have authored.

[abigail-hampson]

Looks good to me, ready to go to the test server

[abigail-hampson]

This can be tested on #945, with the frontend and backend together