Delete a picture from a document

[petitfa1]

Linked to the feature #153 , for now it's possible to add a picture into a document, but not to delete it.

The idea would be to add a button on each picture allowing the user to delete it from the server.

[petitfa1]

Phase 1

• Scenarios (Gherkin)
• Mockups
• Implementation strategy

Phase 2

• Acceptance tests (Capybara)
• Implementation

Phase 3

• Screencast

[louisduhalberruer]

Implementation strategy :

• We looked at how to DELETE attachments from CouchDB using http client such as Postman
• With this knowledge, we can now implement the UI for deleting pictures, which consists in :
  • adding a delete button on every image, with a confirmation dialog when pressed
  • then making the correct API call to delete an attachment
  • refresh the ui

[raphaelweis]

Binôme @raphaelweis et @Barnabepetit.

[raphaelweis]

The mockups have been updated because the previous proposition did not allow for multiple images to be in the same block.

[benel]

@nitram35 and @petitfa1, don't forget to open a draft pull request on your branch (even if is not finished, so that I can review your code).