Fixed gradio warnings

[gabriel20xx]

Description

These are the warnings, they occur on start: /home/user/stable-diffusion-webui/extensions/sd-webui-stable-horde-worker/scripts/script.py:104: GradioDeprecationWarning: The style method is deprecated. Please set these arguments in the constructor instead. with gr.Row().style(equal_height=False): /home/user/stable-diffusion-webui/extensions/sd-webui-stable-horde-worker/scripts/script.py:236: GradioDeprecationWarning: The style method is deprecated. Please set these arguments in the constructor instead. ).style(grid=4) /home/user/stable-diffusion-webui/extensions/sd-webui-stable-horde-worker/scripts/script.py:236: GradioDeprecationWarning: The 'grid' parameter will be deprecated. Please use 'columns' in the constructor instead. ).style(grid=4)

Type of changes

• [x] Bugfix
• [ ] Feature
• [ ] Refactoring
• [ ] Optimization
• [ ] Documentation
• [ ] CI/CD
• [ ] Other

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• [x] I've checked that this isn't a duplicate pull request.
• [x] I've tested my changes with the latest SD-Webui version.
• [x] I've format my code with black: black .
• [x] I've lint my code with flake8: flake8 .
• [x] I've read the Contribution Guidelines
• [x] I've read the Code of Conduct