LibWeb/UIEvents: Implement TextEvent

Author: https://github.com/jamierocks
Commit: f610a12671
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/701
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/AtkinsSJ
Reviewed-by: https://github.com/tcl3

Userland/Libraries/LibWeb/DOM/Document.cpp

@@ -133,6 +133,7 @@
 #include <LibWeb/UIEvents/FocusEvent.h>
 #include <LibWeb/UIEvents/KeyboardEvent.h>
 #include <LibWeb/UIEvents/MouseEvent.h>
+#include <LibWeb/UIEvents/TextEvent.h>
 #include <LibWeb/WebIDL/AbstractOperations.h>
 #include <LibWeb/WebIDL/DOMException.h>
 #include <LibWeb/WebIDL/ExceptionOr.h>
@@ -1784,7 +1785,7 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<Event>> Document::create_event(StringView i
     } else if (Infra::is_ascii_case_insensitive_match(interface, "svgevents"sv)) {
         event = Event::create(realm, FlyString {});
     } else if (Infra::is_ascii_case_insensitive_match(interface, "textevent"sv)) {
-        event = Event::create(realm, FlyString {}); // FIXME: Create TextEvent
+        event = UIEvents::TextEvent::create(realm, FlyString {});
     } else if (Infra::is_ascii_case_insensitive_match(interface, "touchevent"sv)) {
         event = Event::create(realm, FlyString {}); // FIXME: Create TouchEvent
     } else if (Infra::is_ascii_case_insensitive_match(interface, "uievent"sv)