Added a basic DOM diff algorithm

scripts/AnimeNotifier.ts

@@ -1,4 +1,5 @@
 import { Application } from "./Application"
+import { Diff } from "./Diff"
 import { findAll } from "./utils"
 import * as actions from "./actions"
 
@@ -23,6 +24,14 @@ export class AnimeNotifier {
 		this.app.run()
 	}
 
+	reloadContent() {
+		return fetch("/_" + this.app.currentPath, {
+			credentials: "same-origin"
+		})
+		.then(response => response.text())
+		.then(html => Diff.innerHTML(this.app.content, html))
+	}
+
 	loading(isLoading: boolean) {
 		if(isLoading) {
 			this.app.loading.classList.remove(this.app.fadeOutClass)