refactor: async await refactoring - 1

[PritishBudhiraja]

Type of Change

• [ ] Bugfix
• [ ] New feature
• [ ] Enhancement
• [x] Refactoring
• [ ] Dependency updates
• [ ] Documentation
• [ ] CI/CD

Description

for better code readability and enhancing dev experience let's start using async await from now on in our code base.

Will raise multiple PR's for the same so it won't cause issue in reviewing.

How did you test it?

Code compilation and basic sanity.

Files touched in this -

1. states.json fetching
2. Paze
3. Plaid
4. SavedPaymentManagement.res - Payment method management
5. QR Code display

Need to test these flows like nothing should break in this.

Checklist

• [x] I ran npm run re:build
• [x] I reviewed submitted code
• [ ] I added unit tests for my changes where possible

[semanticdiff-com[bot]]

Review changes with  

[seekshiva]

@Sanskar2001 there is some timeout error that happened while Cypress was running. Can you check on it?

[seekshiva]

Merging this PR ignoring the cypress error.