feat: add coupons deactivate form

[Anas12091101]

What are the relevant tickets?

Closes https://github.com/mitodl/hq/issues/5435

Description (What does it do?)

This PR adds the functionality to deactivate the coupons from ecommerce/admin UI

Screenshots (if appropriate):

While submitting the button is disabled

If all the codes and names entered are invalid

How can this be tested?

• Go to http://localhost:8053/ecommerce/admin/deactivate-coupons/
• Enter the coupons names you want to deactivate. Each coupon at separate line. Submit the form
• Go to http://localhost:8053/admin/ecommerce/coupon/ and validate that the enable field of the coupons entered in the step above is set to False
• Try to use the coupon in a checkout. You should get Enrollment / Promotional Code 'coupon-code' is invalid error

Additional Context

• More details regarding access control: https://github.com/mitodl/hq/issues/5435#issuecomment-2400206915

[arslanashraf7]

I haven't taken a detailed look at the PR but here is what I think we should be doing if not already:

1. We should reuse as much code as possible here and invalidate_payment_coupons
2. I think the PR is still missing a lot of screenshots, e.g. error, and success states. We also need to check which color those messages are.
3. Think about what to do if a coupon being requested to be deactivated is already past its expiry date.
4. Do we need to show the skipped coupons? If a person is requesting coupon A & B to be deactivated why would we tell him that coupon C is skipped? This could get confusing for them.
5. Do we want to log the user deactivating the coupon for audit trail?

[pdpinch]

Sorry I'm arriving late to this, but I wanted to ask how access control will work?

[arslanashraf7]

Sorry I'm arriving late to this, but I wanted to ask how access control will work?

@pdpinch Anyone who had access to the coupons admin page would have access to this. @Anas12091101 Correct me If I'm wrong.