Upgrade transformers.js to v3

[NingW101]

@huggingface/transformers has been announced to be available on NPM, we might try to upgrade it since we are using transformers-branch:v3-one_commit to leverage webgpu support.

Some notes and scenarios we should test:

1. Package name changes: @xenova/transformers -> @huggingface/transformers, we should replace imports
2. Does the api call change
3. The version of the dependency ort-web, which affects the version of ort.wasm (we define it in the config.js file since we support a hosted mode to run demos completely offline)
4. Does it match the examples leveraging wasm as a backend.

[NingW101]

1. Fix the bug of text-generation example, add TextStreamer for the TextGenerationPipeline [V3] Fix the bug of text-generation example huggingface/transformers.js#903