Optimize animations and transitions

will-change is apparently not enough to run GPU-enabled animations, use translateZ on top of it

src/animations/TitleSite.js

@@ -11,6 +11,7 @@ export const animateIn = (scope, init) => {
     const letters = anime({
         targets: scope.querySelectorAll('span, em span'),
         translateY: ['100%', 0],
+        translateZ: [0, 0],
         easing: 'easeOutQuart',
         duration: 1000,
         delay: anime.stagger(40, { start: init ? 0 : animDelay }),