Base+CatDog: Move assets from /icons/ to /graphics/

The graphics directory is a more suitable home for demo assets.
Also, update the example presenter file which uses a CatDog sprite.

Base/home/anon/Documents/Example Presentation.presenter

@@ -62,7 +62,7 @@
                     "type": "image",
 
                     "rect": [50, 50, 200, 100],
-                    "path": "/res/icons/catdog/alert.png",
+                    "path": "/res/graphics/catdog/alert.png",
                     "scaling": "fit-smallest",
                     "scaling-mode": "nearest-neighbor"
                 }

Userland/Demos/CatDog/CatDog.cpp

@@ -22,30 +22,30 @@ ErrorOr<NonnullRefPtr<CatDog>> CatDog::create()
     //       So items with the more bits should be placed before items with less bits to
     //       ensure correct matching order. This also means that "Frame2" has to be first.
     static constexpr Array<ImageSource, 24> const image_sources = {
-        ImageSource { State::Up | State::Right | State::Frame2, "/res/icons/catdog/nerun2.png"sv },
-        { State::Up | State::Right, "/res/icons/catdog/nerun1.png"sv },
-        { State::Up | State::Left | State::Frame2, "/res/icons/catdog/nwrun2.png"sv },
-        { State::Up | State::Left, "/res/icons/catdog/nwrun1.png"sv },
-        { State::Down | State::Right | State::Frame2, "/res/icons/catdog/serun2.png"sv },
-        { State::Down | State::Right, "/res/icons/catdog/serun1.png"sv },
-        { State::Down | State::Left | State::Frame2, "/res/icons/catdog/swrun2.png"sv },
-        { State::Down | State::Left, "/res/icons/catdog/swrun1.png"sv },
-        { State::Up | State::Frame2, "/res/icons/catdog/nrun2.png"sv },
-        { State::Up, "/res/icons/catdog/nrun1.png"sv },
-        { State::Down | State::Frame2, "/res/icons/catdog/srun2.png"sv },
-        { State::Down, "/res/icons/catdog/srun1.png"sv },
-        { State::Left | State::Frame2, "/res/icons/catdog/wrun2.png"sv },
-        { State::Left, "/res/icons/catdog/wrun1.png"sv },
-        { State::Right | State::Frame2, "/res/icons/catdog/erun2.png"sv },
-        { State::Right, "/res/icons/catdog/erun1.png"sv },
-        { State::Sleeping | State::Frame2, "/res/icons/catdog/sleep2.png"sv },
-        { State::Sleeping, "/res/icons/catdog/sleep1.png"sv },
-        { State::Idle | State::Artist, "/res/icons/catdog/artist.png"sv },
-        { State::Idle | State::Inspector, "/res/icons/catdog/inspector.png"sv },
-        { State::Idle, "/res/icons/catdog/still.png"sv },
-        { State::Alert | State::Artist, "/res/icons/catdog/artist.png"sv },
-        { State::Alert | State::Inspector, "/res/icons/catdog/inspector.png"sv },
-        { State::Alert, "/res/icons/catdog/alert.png"sv }
+        ImageSource { State::Up | State::Right | State::Frame2, "/res/graphics/catdog/nerun2.png"sv },
+        { State::Up | State::Right, "/res/graphics/catdog/nerun1.png"sv },
+        { State::Up | State::Left | State::Frame2, "/res/graphics/catdog/nwrun2.png"sv },
+        { State::Up | State::Left, "/res/graphics/catdog/nwrun1.png"sv },
+        { State::Down | State::Right | State::Frame2, "/res/graphics/catdog/serun2.png"sv },
+        { State::Down | State::Right, "/res/graphics/catdog/serun1.png"sv },
+        { State::Down | State::Left | State::Frame2, "/res/graphics/catdog/swrun2.png"sv },
+        { State::Down | State::Left, "/res/graphics/catdog/swrun1.png"sv },
+        { State::Up | State::Frame2, "/res/graphics/catdog/nrun2.png"sv },
+        { State::Up, "/res/graphics/catdog/nrun1.png"sv },
+        { State::Down | State::Frame2, "/res/graphics/catdog/srun2.png"sv },
+        { State::Down, "/res/graphics/catdog/srun1.png"sv },
+        { State::Left | State::Frame2, "/res/graphics/catdog/wrun2.png"sv },
+        { State::Left, "/res/graphics/catdog/wrun1.png"sv },
+        { State::Right | State::Frame2, "/res/graphics/catdog/erun2.png"sv },
+        { State::Right, "/res/graphics/catdog/erun1.png"sv },
+        { State::Sleeping | State::Frame2, "/res/graphics/catdog/sleep2.png"sv },
+        { State::Sleeping, "/res/graphics/catdog/sleep1.png"sv },
+        { State::Idle | State::Artist, "/res/graphics/catdog/artist.png"sv },
+        { State::Idle | State::Inspector, "/res/graphics/catdog/inspector.png"sv },
+        { State::Idle, "/res/graphics/catdog/still.png"sv },
+        { State::Alert | State::Artist, "/res/graphics/catdog/artist.png"sv },
+        { State::Alert | State::Inspector, "/res/graphics/catdog/inspector.png"sv },
+        { State::Alert, "/res/graphics/catdog/alert.png"sv }
     };
 
     auto catdog = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) CatDog));