refactor: Changes pagination and sorting constants to improve readability.

[ryasmi]

BREAKING CHANGE: In pagination forward was renamed to direction.
BREAKING CHANGE: To paginate forward use 'forward' in pagination.direction instead of true in pagination.forward. Use import { forward } from '@js-entity-repos/core/dist/types/PaginationDirection'.
BREAKING CHANGE: To paginate backward use 'backward' in pagination.direction instead of false in pagination.forward. Use import { backward } from '@js-entity-repos/core/dist/types/PaginationDirection'.
BREAKING CHANGE: To sort in ascending order use 'asc' in sort instead of true. Use import { asc } from '@js-entity-repos/core/dist/types/SortOrder'.
BREAKING CHANGE: To sort in descending order use 'desc' in sort instead of false. Use import { desc } from '@js-entity-repos/core/dist/types/SortOrder'.

[HT2Bot]

🎉 This PR is included in version 7.0.0 🎉

The release is available on:

• GitHub release
• npm package (@latest dist-tag)

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