fix: pagination: bug fixes for simplified pagination

[rnori-eightfold]

SUMMARY:

• Remove extra padding on the top in case of simplified pagination
• Fix total prop description
• Show simplified pagination only when there is more than one page
• Use pageSizes prop only when layout has PaginationLayoutOptions.Sizes
• Fix usage of Pagination in Carousel component

JIRA TASK (Eightfold Employees Only):

N/A

CHANGE TYPE:

• Bugfix Pull Request
• Feature Pull Request

TEST COVERAGE:

• Tests for this change already exist
• I have added unittests for this change

TEST PLAN:

Pull the PR branch and run yarn, yarn storybook. Verify all types of Pagination, Carousel behave as expected.

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[codecov-commenter]

Codecov Report

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Additional details and impacted files

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[ranjithnori]