Update React and Angular project template dependencies

[MackinnonBuck]

Summary

The Angular template's dependencies were straightforward to update.

The React template's updated dependencies had a lot of breaking changes, so a fair amount of JavaScript had to be updated/rewritten. The primary refactoring involved routing and authentication. I also fixed formatting issues here and there (e.g., changed files that were using 4-space indentation to instead use 2-space indentation).

Validation

Manually tested both templates with and without individual authentication.

[MackinnonBuck]

Also validated published builds on Windows and macOS.

[javiercn]

Great job!

Looks great!

[mkArtakMSFT]

@MackinnonBuck are you also taking care of updating the submodule in dotnet/aspnetcore repo to pull this change in for 6.0?

[MackinnonBuck]

@mkArtakMSFT sure, I'll handle that as well

[wtgodbe]

@MackinnonBuck are you also taking care of updating the submodule in dotnet/aspnetcore repo to pull this change in for 6.0?

This is the main branch, we'd need to backport this to https://github.com/dotnet/spa-templates/tree/release/6.0 to get it in to aspnetcore's release/6.0 branch

[wtgodbe]

For main, I'm going to get this in to dotnet/aspnetcore#41485