Refactor seasonal CSS animations: update positioning and transform properties for autumn, carnival, cherry blossom, christmas, resurrection, and snowflakes styles

Jellyfin.Plugin.Seasonals/Web/snowflakes.css

@@ -14,7 +14,9 @@
 .snowflake {
   position: fixed;
   z-index: 15;
-  top: -10%;
+  top: 0;
+  will-change: transform;
+  translate: 0 -10vh;
   font-size: 1em;
   color: #fff;
   font-family: Arial, sans-serif;
@@ -34,11 +36,11 @@
 
 @-webkit-keyframes snowflakes-fall {
   0% {
-    top: -10%;
+    translate: 0 -10vh;
   }
 
   100% {
-    top: 110%;
+    translate: 0 110vh;
   }
 }
 
@@ -46,23 +48,21 @@
 
   0%,
   100% {
-    -webkit-transform: translateX(0);
     transform: translateX(0);
   }
 
   50% {
-    -webkit-transform: translateX(80px);
     transform: translateX(80px);
   }
 }
 
 @keyframes snowflakes-fall {
   0% {
-    top: -10%;
+    translate: 0 -10vh;
   }
 
   100% {
-    top: 110%;
+    translate: 0 110vh;
   }
 }