Add back Helvetica Neue is first font

Author: veyndan

sass/_base.scss

@@ -35,7 +35,8 @@ body {
     background-color: #fff;
     color: var(--color-text);
 
-    font-family: system-ui,
+    font-family: "Helvetica Neue",
+        system-ui,
         sans-serif,
         "Apple Color Emoji",
         /* Emojis*/