Tests: Un-skip css-nesting/top-level-is-scope.html test

This no longer crashes.

Tests/LibWeb/TestConfig.ini

@@ -129,9 +129,6 @@ Text/input/wpt-import/css/css-nesting/implicit-parent-insertion-crash.html
 Text/input/wpt-import/css/css-nesting/pseudo-part-crash.html
 Text/input/wpt-import/css/css-nesting/pseudo-where-crash.html
 
-; Currently crashes
-Text/input/wpt-import/css/css-nesting/top-level-is-scope.html
-
 ; Imported animation tests are extra slow
 ; https://github.com/LadybirdBrowser/ladybird/issues/2238
 Text/input/wpt-import/css/css-backgrounds/animations/background-color-interpolation.html

Tests/LibWeb/Text/expected/wpt-import/css/css-nesting/top-level-is-scope.txt

@@ -0,0 +1,12 @@
+Summary
+
+Harness status: OK
+
+Rerun
+
+Found 2 tests
+
+2 Pass
+Details
+Result	Test Name	MessagePass	& as direct ancestor	
+Pass	& matches scoped element only, not everything