Style and animations fixes

- Add a requestAnimationFrame for TitleSite (would not fire from a location to credits/choose)
- Center and adjust parallax scroll for massive titles
- Place illustration: max width and center

src/style/_base.scss

@@ -57,6 +57,7 @@ button {
     line-height: 1;
     color: $color-secondary;
     letter-spacing: -2vw;
+    text-align: center;
     pointer-events: none;
     user-select: none;
 
@@ -65,6 +66,7 @@ button {
     }
     @include breakpoint (1920px) {
         font-size: rem(900px);
+        letter-spacing: -40px;
     }
 
     &, span {