Refactor app.py to utilize shared functions for greeting, calculation, and image processing, enhancing modularity and code reuse. Introduce space loading tabs for dynamic integration of popular Hugging Face Spaces.

Refactor app.py to modularize tab functionality by introducing greeting_tab, calculator_tab, and sepia_tab functions for improved readability and maintainability

Refactor tab close functionality to return visibility state directly for Extra Space, SAM2.1 Masking Tool, and Custom IFrame Loader

Add dynamic tab rendering for Extra Space, SAM2.1 Masking Tool, and Custom IFrame Loader with open/close functionality

Add SAM2.1 Masking Tool integration with new API Proxy tab and custom IFrame loader

Add extra tabs for external tools and buttons to load them

re-init