fix: remove deprecated show_api for Gradio 6.x compatibility

[lichuanqi]

Issue

Gradio 6.x moved the show_api parameter from the launch() method. This change removes the deprecated parameter to ensure compatibility with Gradio 6.x while maintaining backward compatibility. This causes a startup error:

TypeError Blocks.launch() got an unexpected keyword argument show_api

fix

Removed the deprecated show_api=False argument from app.launch() in app.py

[gemini-code-assist]

Code Review

This pull request removes the show_api parameter from a function call in app.py. The reviewer suggests re-adding a trailing comma to the root_path argument to align with PEP 8 style guidelines and ensure cleaner version control diffs in the future.