chandruglobalimpactacademy-source/johri_dashboard ? reverse-engineered prompt

Build me a simple Streamlit dashboard app in Python that lets me explore and present data in a clean, easy way.

I want it to feel polished and usable, with a nice layout, a clear sidebar for controls, and a main area that shows the important charts, tables, and summary numbers. Make it easy to filter or switch between views, and keep the app responsive and visually appealing for a non technical user.

If you need to check anything current from the Streamlit docs or best practices, go ahead and look it up online. Please make the app run smoothly from the main Python file in the repo, and make sure the dependencies are set up so it is easy to launch locally. If there are any obvious improvements to the existing dashboard code, fold them in so the result feels like a finished, enhanced version rather than a rough prototype.