implement edit resource functionality

[juditta99]

API

• write edit resources logic
• write test (.js)
• test logic with node (in terminal)
• add logic to index
• write handler for edit resources
• add endpoint to our index
• test endpoint with curl (.sh)
• write test (.spec.js) using mocha and chai

APP

• write edit resources logic
• create EditResourceButton component
• create EditResource page
  • fetch Resource
  • set resourceType
  • populate form
  • check user can edit the form
  • handle form submit to update resource in database
  • ensure topics are checked when you click on edit