[CHE-169] Add Express Async Errors Dep

[seantokuzo]

Description

As part of the CHE-167 BE Refactor Error Handling story, this PR

• adds the express-async-errors package
• Implements it by importing in index.ts

This package wraps the entire express application so in the case of asynchronous methods (middlewares and controllers), instead of manually calling next passing in an error, we can just throw an error and it will automatically be caught and passed to the next function, invoking the global error handler.

express-async-errors npm package

Because of the added dependency, a Docker image rebuild will be required once story branch is merged into dev
Future testing on this story branch will require this updated image OR a local image build

Jira Task

JIRA TICKET

Testing Instructions

N/A - testing unavailable until future tickets making use of this new functionality

Checklist

All Team Members

• I added a descriptive title to this PR.
• I filled out the Description, Jira Task, and Testing Instructions sections above.
• I added or updated [Jest unit tests]for any changes to components, server-side controllers, etc.
• I ran npm run docker-test in my local environment to check that this PR passes all unit tests.
• I did a quick check to make sure my code changes follow the recomended style guide.

[brok3turtl3]

@seantokuzo I love this new approach to error handling. I think it will work really well as we continue to scale out and I am eager to see it put into use. Great work! 🎉

[brok3turtl3]

@seantokuzo I think you can go ahead and delete the PR for CHE-168 as all that code has been merged into this branch by the looks of it.