NR UI - Staff Payment (part 2)

[severinbeauvais]

This is the remainder of the work from "UI - whatever is needed". The part 1 ticket is implemented the UI but is incomplete as the API changes have not been done yet. In THIS ticket:

• send staff payment data in header of Create Payment call (see createPayment()).
• check the "payment required" flag back from the API and redirect to Pay URL or route to results page accordingly.

Acceptance Criteria:

1. When a regular user (incl not logged in) clicks "Continue to Payment", they should be redirected to PayBC (same as now).

2. When a staff user clicks "Continue to Payment", the Staff Payment modal should display. When they fill in the data and click "Submit Name Request", they should be rerouted to the existing NR display page (and the NR should be paid).

[severinbeauvais]

See this for code that could be reused:
https://github.com/bcgov/business-edit-ui/blob/38b5d1919bdf0aa6d540c8c11b72b3209f45f7a5/src/mixins/filing-template-mixin.ts#L584

[severinbeauvais]

This is ready for QA in Dev,