TPv2 Should not use internal Angular Material Selectors

[shamrickus]

This Bug Report affects these Traffic Control components:

• Traffic Portal v2

Current behavior:

Across the TPv2 code base we currently style Angular Material components by attaching to internal elements/attributes. For instance mat-card or .mat-mdc-card (once #7454 is merged).

Expected behavior:

These instances should be updated to use our own classes as selectors, for instance instead of attaching to a mat-card we should add our own class to it and select for that class. The Angular Material library is built with this in mind so this method of styling.