GRADIO_SHARE Environment Variable (#7986)
* GRADIO_SHARE Environment Variable
An environment variable to force `share=True` when launching gradio, regardless of what was passed in as argument.
Useful for taking any Gradio-powered app and making them run with the gradio.live link WITHOUT having to update the code.
* make it work for both share=True and share=False
* correct parsing
- `"GRADIO_SHARE": "0"` => `False`
- `"GRADIO_SHARE": "1"` => `True`
* comment
* Apply GRADIO_SHARE only if it's not specified in code.
* one line
* remove line
* add changeset
* included in docstring
* add changeset
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Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>