refactor: Remove unused Cypress and Percy dependencies and configurations

refactor: Remove unused Cypress and Percy dependencies and configurations This commit removes all references to Cypress and Percy from the project. This includes: - Deleting Cypress configuration files (`cypress.config.js`, `.gitkeep`, fixtures, support files). - Removing Cypress-related test files (`.cy.js` files). - Removing Percy configuration file (`.percy.yml`). - Removing Cypress and Percy packages from `package.json` and `package-lock.json`. This cleanup is done to reflect the removal of these testing tools from the project.