LibWeb: Ensure value sanitization algorithm trims whitespace if needed

Previously, the value sanitization algorithm would not trim whitespace
for inputs of type URL or email, if they didn't also contain any
newlines.

Userland/Libraries/LibWeb/HTML/HTMLInputElement.cpp

@@ -1361,6 +1361,7 @@ String HTMLInputElement::value_sanitization_algorithm(String const& value) const
             }
             return MUST(String::from_utf8(builder.string_view().trim(Infra::ASCII_WHITESPACE)));
         }
+        return MUST(value.trim(Infra::ASCII_WHITESPACE));
     } else if (type_state() == HTMLInputElement::TypeAttributeState::Email) {
         // https://html.spec.whatwg.org/multipage/input.html#email-state-(type=email):value-sanitization-algorithm
         // FIXME: handle the `multiple` attribute
@@ -1373,6 +1374,7 @@ String HTMLInputElement::value_sanitization_algorithm(String const& value) const
             }
             return MUST(String::from_utf8(builder.string_view().trim(Infra::ASCII_WHITESPACE)));
         }
+        return MUST(value.trim(Infra::ASCII_WHITESPACE));
     } else if (type_state() == HTMLInputElement::TypeAttributeState::Number) {
         // https://html.spec.whatwg.org/multipage/input.html#number-state-(type=number):value-sanitization-algorithm
         // If the value of the element is not a valid floating-point number, then set it