chore: Update segformer_ckpt in app.py to use mattmdjaga/segformer_b2_clothes

chore: Remove unused files and dependencies

chore: Update app.py to set CUDA_HOME environment variable and add CUDA bin directory to PATH

chore: Set CUDA_HOME environment variable for GPU support

Add spaces library for GPU support

chore: Add SCHP model and detectron2 dependencies