build(esbuild): refine configuration logic for development and production modes

This commit optimizes the ESBuild configuration files to improve the build process behavior between development and production environments.

Key changes:
- In `Target.js`: Changed the `treeShaking` option from a static `true` value to conditional logic based on the development mode (`!t` where `t` represents the `On` flag). This ensures tree shaking is disabled in development mode for better debugging and enabled in production for optimal bundle size.
- In `Wind.js`: Refactored the conditional logic for cleaning the output directory from a switch statement to a more concise boolean check (`!0===(r===!0) &&`), making the code more readable and maintainable while preserving the same functionality.

The modifications ensure that the build system behaves correctly according to the environment (development vs. production), with development mode (`On=true`) disabling tree shaking for debugging and production mode (`On=false`) enabling it for optimization. The variable renaming in `Target.js` (from `i` to `t`) and loop variable adjustments maintain consistency and prevent potential naming conflicts.

Author: NikolaRHristov