LibWeb: Add SVG <circle> element and test case :^)

Author: https://github.com/AtkinsSJ
Commit: 21bdcee3c3
Pull-request: https://github.com/SerenityOS/serenity/pull/12444
Reviewed-by: https://github.com/awesomekling

Userland/Libraries/LibWeb/Forward.h

@@ -244,6 +244,7 @@ class ResizeObserver;
 }
 
 namespace Web::SVG {
+class SVGCircleElement;
 class SVGElement;
 class SVGGeometryElement;
 class SVGGraphicsElement;
@@ -450,6 +451,7 @@ class StyleSheetListWrapper;
 class StyleSheetWrapper;
 class SubmitEventWrapper;
 class SubtleCryptoWrapper;
+class SVGCircleElementWrapper;
 class SVGElementWrapper;
 class SVGGeometryElementWrapper;
 class SVGGraphicsElementWrapper;