LibWeb: The line-height should not be multiplied by the glyph height

This was causing very tall lines on many websites. We can now see the
section header thingy on google.com (although it's broken into lines
where it should not be..) :^)

Libraries/LibWeb/CSS/StyleProperties.cpp

@@ -176,7 +176,7 @@ float StyleProperties::line_height() const
 {
     auto line_height_length = length_or_fallback(CSS::PropertyID::LineHeight, {});
     if (line_height_length.is_absolute())
-        return (float)font().glyph_height() * line_height_length.to_px();
+        return (float)line_height_length.to_px();
     return (float)font().glyph_height() * 1.4f;
 }