feat: Added a low power mode

- added a lower power mode that reduces cpu load by disabling hero animations

src/theme.css

@@ -99,6 +99,11 @@
     animation: dot-grid-drift-x 3s linear infinite;
 }
 
+.dot-grid.dot-grid-static::before {
+    animation: none;
+    background-position: 0px 0px;
+}
+
 @keyframes dot-grid-drift-x {
     from {
         background-position: 0px 0px;