More efficient sample counting

src/app/home/home.component.ts

@@ -74,10 +74,12 @@ export class HomeComponent implements OnInit {
 	countSamples(data: any) {
 		this.keys.map(key => key.count = 0);
 		for (var i = 0; i < data.length; i++) {
-			this.keys.forEach(key => {
+			this.keys.every(key => {
 				if (key.id === data[i].material.group) {
-					key.count += 1;
+					key.count++;
+					return false;
 				}
+				return true;
 			});
 		}
 		this.updateGraph();