Fixed PHP paths. Moved all the remaining code to /src.

src/display/graph.js

 import * as Config from "../config";
 import * as Helpers from "./helpers";
-import { loadGraphJson } from "../../datasets/datasets";
+import { loadGraphJson } from "../datasets";
 
 import * as THREE from "three";
 import ForceGraph3D from "3d-force-graph";