fix(core): update

ts/index.ts

@@ -1,3 +1,26 @@
 import * as plugins from './fontloader.plugins.js';
 
-export let demoExport = 'Hi there! :) This is an exported string';
+export type TFonts = 'Inter' | 'MaterialIcons' | 'Courier Prime';
+
+let fontsloaderSingleton: FontLoader;
+export class FontLoader {
+  public static ensureFonts(fontsArrayArg: TFonts) {
+    if (!fontsloaderSingleton) {
+      fontsloaderSingleton = new FontLoader();
+    }
+  }
+
+  /**
+   * loads the Inter font
+   */
+  public loadInter() {
+    
+  }
+
+  /**
+   * load material icons
+   */
+  public loadMaterialIcon() {
+
+  }
+}