LibWeb: Alphabetize animation properties

I didn't notice this when they were added, whoops

Userland/Libraries/LibWeb/CSS/Properties.json

@@ -45,16 +45,23 @@
       "animation-fill-mode"
     ]
   },
-  "animation-name": {
+  "animation-delay": {
     "affects-layout": true,
     "inherited": false,
-    "initial": "none",
+    "initial": "0s",
     "valid-types": [
-      "string",
-      "custom-ident"
-    ],
+      "time [-∞,∞]"
+    ]
+  },
+  "animation-direction": {
+    "affects-layout": false,
+    "inherited": false,
+    "initial": "normal",
     "valid-identifiers": [
-      "none"
+      "normal",
+      "reverse",
+      "alternate",
+      "alternate-reverse"
     ]
   },
   "animation-duration": {
@@ -65,17 +72,15 @@
       "time [0,∞]"
     ]
   },
-  "animation-timing-function": {
+  "animation-fill-mode": {
     "affects-layout": true,
     "inherited": false,
-    "initial": "ease",
-    "__comment": "FIXME: This is like...wrong.",
+    "initial": "none",
     "valid-identifiers": [
-      "ease",
-      "linear",
-      "ease-in-out",
-      "ease-in",
-      "ease-out"
+      "none",
+      "forwards",
+      "backwards",
+      "both"
     ]
   },
   "animation-iteration-count": {
@@ -89,15 +94,16 @@
       "infinite"
     ]
   },
-  "animation-direction": {
-    "affects-layout": false,
+  "animation-name": {
+    "affects-layout": true,
     "inherited": false,
-    "initial": "normal",
+    "initial": "none",
+    "valid-types": [
+      "string",
+      "custom-ident"
+    ],
     "valid-identifiers": [
-      "normal",
-      "reverse",
-      "alternate",
-      "alternate-reverse"
+      "none"
     ]
   },
   "animation-play-state": {
@@ -109,23 +115,17 @@
       "paused"
     ]
   },
-  "animation-delay": {
-    "affects-layout": true,
-    "inherited": false,
-    "initial": "0s",
-    "valid-types": [
-      "time [-∞,∞]"
-    ]
-  },
-  "animation-fill-mode": {
+  "animation-timing-function": {
     "affects-layout": true,
     "inherited": false,
-    "initial": "none",
+    "initial": "ease",
+    "__comment": "FIXME: This is like...wrong.",
     "valid-identifiers": [
-      "none",
-      "forwards",
-      "backwards",
-      "both"
+      "ease",
+      "linear",
+      "ease-in-out",
+      "ease-in",
+      "ease-out"
     ]
   },
   "appearance": {