This pull request includes several changes across multiple documentation files to improve the explanation of the validation feedback strategy and the use of the typia.validate<T>() function. The changes primarily focus on clarifying the benefits and functionality of the typia library for LLM function calling and structured output.

Improvements to documentation:

• website/pages/docs/llm/application.mdx: Enhanced the description of the typia.validate<T>() function, emphasizing its accuracy and detail by analyzing TypeScript source codes and types at the compilation level. Clarified its necessity for function calling and its superiority over other validator libraries.
• website/pages/docs/llm/chat.mdx: Improved the explanation of the typia.validate<T>() function, highlighting its accuracy and detail by analyzing TypeScript source codes and types at the compilation level. Asserted its essential role in achieving high success rates in LLM function calling.
• website/pages/docs/llm/parameters.mdx: Updated the description of the typia.validate<T>() function, stressing its accuracy and detail by analyzing TypeScript source codes and types at the compilation level. Stated its importance for structured output in LLMs.

Code simplification:

• website/src/snippets/ValidationFeedbackExampleSnippet.mdx: Refactored the correctFunctionCall function to use an object parameter, improving code readability and maintainability.