fix: 404 errors from celestial.js on page load

[eatyourgreens]

Fix the missing data files error popup for the ATLAS sky map by adding the data/ directory to celestial.js.

Constellations and the Milky Way are shown by default, but can be turned off in the configuration script.

[genghisken]

Can we hold off on this one please. I'm not sure what triggered the fix here. Which issue is this related to?

The files changed are deep inside the celestial.js infrastructure, which is actually outside our control. When we download a new version of celestial.js and data, all the changes here will be overwritten.

[eatyourgreens]

@genghisken this is a fix for the error popup that Celestial shows, because its data files are missing.

I copied the JSON files over from https://github.com/ofrohn/d3-celestial

[eatyourgreens]

Looking at the code, only mw.json is needed in order to remove that error popup.

psat-server-web/psat_server_web/atlas/site_media/js/celestial/celestial.js

Lines 149 to 154 in b6c6a3f

	//Milky way outline
	d3.json(path + "mw.json", function(error, json) {
	if (error) {
	window.alert("Your Browser doesn't support local file loading or the file doesn't exist. See readme.md");
	return console.warn(error);
	}