Tests: Resync imported WPT tests

Author: https://github.com/tcl3
Commit: https://github.com/LadybirdBrowser/ladybird/commit/504a8e6d1d3
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/8776
Reviewed-by: https://github.com/shannonbooth ✅

Tests/LibWeb/Text/input/wpt-import/css/css-cascade/all-prop-revert-layer.html

@@ -7,11 +7,17 @@
 <style>
 /* Set properties to a value different than the initial one. */
 #nothing {
+  /*
+   * Legacy longhand properties that were later converted to shorthands
+   * should be specified here to prevent resetting the new longhands.
+   */
+  vertical-align: 123px;
+
   accent-color: #123;
   align-content: baseline;
   align-items: baseline;
   align-self: baseline;
-  alignment-baseline: central;
+  alignment-baseline: middle;
   alt: "a";
   animation-composition: add;
   animation-delay: 123s;
@@ -351,7 +357,6 @@
   unicode-bidi: plaintext;
   user-select: all;
   vector-effect: non-scaling-stroke;
-  vertical-align: 123px;
   view-timeline: --foo inline 10px;
   view-transition-name: --foo;
   visibility: collapse;