Add CSS properties for consistent font rendering

styles/globals.scss

@@ -9,6 +9,8 @@ html {
 
 body {
   -webkit-font-smoothing: antialiased;
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
   box-sizing: border-box;
   font-family: var(--font-family);
   font-size: 1.4rem;