Refactor and Enhance tests/escrow/tests/escrow.ts for Readability and Maintainability

[techvoyagerX]

Proposed Changes

1. Introduce Helper Functions

   • Add utility functions for repetitive tasks like SOL airdrops, creating mints, and minting tokens to reduce redundancy.

2. Enhance Readability

   • Use descriptive variable names and clean formatting to improve clarity and logical flow.

3. Streamline Assertions

   • Ensure assertions are clearly expressed to validate test outcomes effectively.

4. Error Handling

   • Add safeguards during setup and test execution to prevent unhandled errors.

5. Documentation and Structure

   • Improve comments for clarity and logical test grouping for better understanding.

Benefits of the Change

• Maintainability: Makes the test code easier to update and debug.
• Reusability: Simplifies adding new tests with the same structure.
• Readability: Improves comprehension for contributors reviewing or modifying the code.

Acceptance Criteria

• Refactored code introduces helper functions for repetitive operations.
• Tests remain logically grouped and pass successfully after the update.
• Code aligns with established project standards.