Refactor provider health status and update build configurations

- Updated the `ProviderSettings` component to log the current active provider.
- Changed the provider health status to use specific names for MLX and PyTorch backends.
- Removed unnecessary exclusions from the build scripts for both PyTorch CPU and CUDA providers.
- Ensured consistency in the `.spec` files for PyTorch providers by aligning exclusion lists.

providers/pytorch-cpu/build.py

@@ -63,7 +63,6 @@ def build_provider():
         '--exclude-module', 'triton',
         '--exclude-module', 'torch._dynamo',
         '--exclude-module', 'torch._inductor',
-        '--exclude-module', 'torch.testing',
         '--exclude-module', 'torch.utils.benchmark',
         '--exclude-module', 'IPython',
         '--exclude-module', 'matplotlib',