TLE to entity in cesium app

[ryanpdx]

Could get rid of the python flask app if the cesium app could handle converting the TLE to an Cesium entity.

This could be useful: https://community.cesium.com/t/27-5000-how-do-i-load-all-the-satellite-debris-data-tle-into-cesium/17355

[dmitri-mcguckin]

Turning it into a proper NextJS app, in order to take advantage of better module management.

[ryanpdx]

I accidentally deleted my previous comment.

Cool, there is resium (react cesium): https://github.com/reearth/resium