Add preprocessor_config.json for ChatterboxProcessor/AutoProcessor

Fix config.json: correct text_config from chatterbox-ONNX reference (hidden_size=1024, num_layers=30, vocab_size=8194)

Add transformers.js_config.use_external_data_format for ONNX external data files

Add config.json for transformers.js v4 compatibility

Duplicate from onnx-community/chatterbox-multilingual-ONNX