Describe your changes

Changed the code that looks up the angular.json so that it uses the absolute "ui dir" path (which is based on the project directory) instead of basing the path off the working directory.

Fixes Issue

Fix #812

Check List (Check all the applicable boxes)

• My code follows the code style of this project.
• My change requires changes to the documentation.
• I have updated the documentation accordingly.
• All new and existing tests passed.