add co-ordinates for cities in reference file itself

[Srihariharasudhan-Balakannan]

we figure out the coordinates for cities while visualizing. But it would be more efficient to add the coordinates under the reference folder with the cities list and add state data as well.

[Srihariharasudhan-Balakannan]

Refactoring would involve updating the location web scraping logic to include state details. Additionally, it entails utilizing the coordinates function in the web app code and integrating it into the extraction notebook to record both state and coordinates under the same reference file. It's important to ensure that the file is only updated if city details are absent, and new city details are appended only if necessary. This approach will enhance efficiency and eliminate some response exceptions.