MAC M1 and M2 issue for processor not found

[TamimDostyar]

Summary by Sourcery

Fix camera detection and frame processor initialization issues on Mac M1/M2 systems

Bug Fixes:

• Improved camera detection logic for macOS to handle M1/M2 systems
• Fixed frame processor module loading to prevent errors during initialization

Enhancements:

• Simplified frame processor module loading mechanism
• Streamlined camera detection process

Chores:

• Set default frame processor to 'face_swapper' in globals