feat: Validate attributes and W3C schema URL while issuance

[vivekayanworks]

Acceptance Criteria

• When user initiate an issuance process, the system should compare the schema attributes with the provided attributes
• If the schema attributes and the provided attributes are not the same, the system should display a user-friendly message

[bhavanakarwade]

This task is completed on date(23/05/2024), but the payload for this task is modified on date (30/05/2024). Need to discuss

• Requirement changed: need to change request payload.

[bhavanakarwade]

I have updated this functionality according to new changes

[sayali-chavan96]

Pending Todos:

Backend

• [x] When try to create an offer with mismatched schema attributes the system should return a '400, Bad Request ' status code

[bhavanakarwade]

This task is completed.