fix: Improve Type Safety and Readability of Validation Logic

[0xwitty]

Several key improvements to enhance code quality and prevent potential errors:

• Added Typing for validations and Related Objects: This improves readability and ensures that the objects are correctly typed throughout the code, making it easier to understand and maintain.
• Replaced let with const for Immutable Variables: The variables examples, schema, and about were refactored to use const instead of let, as they are not reassigned after their initial value. This promotes better practices and indicates the intention that these values should remain constant.
• Introduced Type Interfaces for validationInstance: To further improve type safety, interfaces have been added to correctly type the validationInstance object. This enhances code clarity and provides an additional layer of protection against potential bugs.

These changes significantly improve the maintainability and clarity of the codebase while ensuring a more robust development process.