fix up a bunch of clang-tidy stuff

mostly changing references, which i hope doesnt break stuff with models (TreeRow, iterators) since they gave me some strange problems in the past

src/components/cellrendererpixbufanimation.cpp

@@ -10,8 +10,6 @@ CellRendererPixbufAnimation::CellRendererPixbufAnimation()
     property_ypad() = 2;
 }
 
-CellRendererPixbufAnimation::~CellRendererPixbufAnimation() {}
-
 Glib::PropertyProxy<Glib::RefPtr<Gdk::Pixbuf>> CellRendererPixbufAnimation::property_pixbuf() {
     return m_property_pixbuf.get_proxy();
 }