Fix: receipt modal transparent (#2609)

## Explanation of the solution
* add missing background color
![Uploading image.png…]()


## Instructions on making this work

- run `yarn` or `yarn install` to install npm dependencies
- run `yarn run test --watchAll` to verify all tests still pass
- (optional) run `yarn run build` to verify the build passes
- run `yarn start` to start the webapp
-

## UI changes for review

When major UI changes are introduced with a PR, please include links to URLS to compare or screenshots demonstrating the difference and notify on design changes

src/components/KYC/index.tsx

@@ -33,7 +33,7 @@ export default function KYC(props: Props) {
  return (
  <FormProvider {...methods}>
  <Modal
- className={`${formStyle} fixed-center z-20 rounded-md p-6 w-full max-w-xl max-h-[85vh] overflow-y-auto scroller shadow-lg border-none dark:border-2 dark:border-bluegray`}
+ className={`${formStyle} bg-white fixed-center z-20 rounded-md p-6 w-full max-w-xl max-h-[85vh] overflow-y-auto scroller shadow-lg border-none dark:border-2 dark:border-bluegray`}
  >
  <Form {...props} />
  </Modal>