Describe Your Changes

This pull request includes changes to the GetMemoryInfo function in the engine/utils/hardware/ram_info.h file to improve the accuracy of memory information retrieval on macOS systems. The changes focus on replacing the calculation of used memory with available memory.

Changes to memory information retrieval:

• Replaced the variable used_memory with avail_memory to calculate available memory instead of used memory.
• Updated the calculation of available memory to include free_count and inactive_count instead of active_count, inactive_count, and wire_count.
• Modified the return statement to reflect the new available memory calculation.

Fixes Issues

• bug: Isssue cache memory usage using/quitting/restarting Jan #2012

Self Checklist

• Added relevant comments, esp in complex areas
• Updated docs (for bug fixes / features)
• Created issues for follow-up changes or refactoring needed