LibWeb: Add HTMLPreElement width property

Author: https://github.com/bplaat
Commit: 089a98607c
Pull-request: https://github.com/SerenityOS/serenity/pull/23261
Reviewed-by: https://github.com/ADKaster ✅

Userland/Libraries/LibWeb/HTML/HTMLPreElement.h

@@ -8,6 +8,7 @@
 
 #include <LibWeb/ARIA/Roles.h>
 #include <LibWeb/HTML/HTMLElement.h>
+#include <LibWeb/WebIDL/Types.h>
 
 namespace Web::HTML {
 
@@ -21,6 +22,9 @@ public:
     // https://www.w3.org/TR/html-aria/#el-pre
     virtual Optional<ARIA::Role> default_role() const override { return ARIA::Role::generic; }
 
+    WebIDL::Long width() const;
+    WebIDL::ExceptionOr<void> set_width(WebIDL::Long);
+
 private:
     HTMLPreElement(DOM::Document&, DOM::QualifiedName);