Replace OIDC client js with ts

[hsandhar]

Currently used oidc-client package is no longer maintained, and another successor project oidc-client-ts (forked from original package) is showing great promise.

This PR more or less just replaces oidc-client with oidc-client-ts with some minor changes; more or less highlighted in the migration guide.

• Default of loadUserInfo changed from true → false
• allowedCommonJsDependencies within angular.json: replaced oidc-client (no longer used/older package) with crypto-js (one of the dependencies for oidc-client-ts. Just removes build warnings.