refactor: remove google font

js/globals/globals_tokens.js

@@ -45,7 +45,7 @@ const font = {
   },
   families: {
     default: 'Arial, sans-serif',
-    btn: "'Bangers', serif",
+    btn: 'Arial, sans-serif',
     fraction: 'monospace',
   },
 };

style/IFractions.css

@@ -1,6 +1,4 @@
 
-@import url('https://fonts.googleapis.com/css2?family=Bangers&display=swap');
-
 .ifr-canvas {
     width: 100%;
 }