Dashboard V2

[jasonjoh]

Recreated pull request #405 that was merged inadvertently and subsequently reverted.

This is a complete rewrite of the dashboard.

Reasoning

1. Constant deluge of Dependabot PR's due to age of React front-end. Due to time/resource scarcity, testing and validating these PR's was not an easy task.
2. React front-end was using an old, deprecated auth library, oidc-connect. No longer maintained on GitHub, project is archived.
3. Backend was using outdated versions of the ASP.NET Core auth middleware.

Improvements

1. Updated the auth stack to use msal-react and Microsoft.Identity.Web.
2. Recreated FE app, updating all NPM dependencies possible.
3. Simplified and cleaned up models. There was a lot of duplicated information, mix of conventions, multiple classes in a single file, etc.
4. Increased code re-use in React app by creating more reusable components.
5. Visual improvements (tweak to dark mode, user photo via Graph)

[andrueastman]

Thanks again for cleaning this up 👍🏼

[jasonjoh]

@andrueastman @MaggieKimani1 @thewahome Does this need further review or should we proceed with merging?