jimfuqian/BB2-3798 Node sample client to use SMART App v2 scopes

[JFU-NAVA-PBC]

JIRA Ticket:
BB2-3798
BB2-3802

Make necessary change to use SMART App v2 scope vs legacy scope.

What Does This PR Do?

Make necessary change to use SMART App v2 scope vs legacy scope.
(Append query parameter: scope=) to the authorize URL

What Should Reviewers Watch For?

1. Verify the sample app works as expected
2. Access token's scopes are SMART App v2 format

Validation

1. Checkout this PR to local
2. Configure the sample app as instructed by README: point to your app on SBX or TEST, note you need to add v2 scopes to your app (currently this is done through Django admin 'My application' view
3. Start the sample app (docker compose up)
4. Going through the authorization flow (medicare.gov login with synthetic user, grant data access permission e.g. share or not share demographic info etc.)
5. Verify the access token is tied up with v2 scope vs legacy scope (this can be done by attaching to the sample app server component and put break point at the access token obtained line and exam the access token's scope
6. OR on the bb2 server side check the access token (through django admin access token view)

[JFU-NAVA-PBC]

Thanks for approval,

this PR will park here then sync with master after version bumps pr merged into master.
and then wait on PROD's coordination (should be in master after the API side ready for v2 scope consumption)

this PR will be merged to master ONLY when:

1. node SDK v2 scope PR is in master AND
2. node SDK v2 scope changes published to NPM