cookbook: Modified COGL example for consistency
cookbook: Modified COGL example for consistency

Changed the stage size so the COGL API example for cross-fade
has a stage the same size as the two texture example.

GNOME/clutter,dlespiau/clutter,ebassi/clutter,ebassi/clutter,heysion/clutter-clone,GNOME/clutter,dlespiau/clutter,GNOME/clutter,GNOME/clutter,jigpu/clutter,Distrotech/clutter,kerrickstaley/clutter-vala,kerrickstaley/clutter-vala,spatulasnout/clutter,jigpu/clutter,djdeath/clutter-android,jigpu/clutter,heysion/clutter-clone,jigpu/clutter,collects/clutter,nobled/clutter,heysion/clutter-clone,djdeath/clutter-android,heysion/clutter-clone,ebassi/clutter,djdeath/clutter,kerrickstaley/clutter-vala,djdeath/clutter-android,jigpu/clutter,jigpu/clutter,Distrotech/clutter,Distrotech/clutter,collects/clutter,Distrotech/clutter,djdeath/clutter-multithreaded,spatulasnout/clutter,djdeath/clutter,djdeath/clutter-multithreaded,djdeath/clutter,spatulasnout/clutter,nobled/clutter,dlespiau/clutter,ebassi/clutter,GNOME/clutter,ebassi/clutter,spatulasnout/clutter,spatulasnout/clutter,collects/clutter,Distrotech/clutter,collects/clutter,djdeath/clutter,djdeath/clutter-android,djdeath/clutter-android,nobled/clutter,djdeath/clutter,djdeath/clutter,heysion/clutter-clone,djdeath/clutter-multithreaded,kerrickstaley/clutter-vala,djdeath/clutter-multithreaded,Distrotech/clutter,collects/clutter