Connect the Angular App to the MongoDB Database

[BaaniLeen]

Description

Connected Angular App to MongoDB.
Fixes #214

Type of Change:

• Code
• Quality Assurance
• User Interface

Code/Quality Assurance Only

• This change requires a documentation update (software upgrade on readme file)
• New feature (non-breaking change which adds functionality pre-approved by mentors)

Checklist:

• My PR follows the style guidelines of this project
• I have performed a self-review of my own code or materials

Code/Quality Assurance Only

• My changes generate no new warnings
• My PR currently breaks something (fix or feature that would cause existing functionality to not work as expected)
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been published in downstream modules

[ancyp]

@BaaniLeen hope you are addressing the checks that failed.

[BaaniLeen]

This PR was closed since the only place where the DB is required is addressed by #240 as well as the code is tested there since the API is being used to display the Program details. Whereas in this PR, the API has been written but is not being tested. :)