theme: efl/photocam -> efl/image_zoomable

the theme group for a class should match its class name

ref T8231

Reviewed-by: Xavi Artigas <xavierartigas@yahoo.es>
Differential Revision: https://phab.enlightenment.org/D10052

data/elementary/themes/default.edc

@@ -190,7 +190,7 @@ collections {
 #include "edc/efl/tags.edc"
 #include "edc/efl/panel.edc"
 #include "edc/efl/tooltip.edc"
-#include "edc/efl/photocam.edc"
+#include "edc/efl/image_zoomable.edc"
 #include "edc/efl/progress.edc"
 #include "edc/efl/border.edc"
 #include "edc/efl/spin.edc"

data/elementary/themes/edc/efl/image_zoomable.edc

@@ -1,4 +1,4 @@
-group { name: "efl/photocam";
+group { name: "efl/image_zoomable";
    inherit: "efl/scroller";
    images.image: "knob_round_busy.png" COMP;
    images.image: "glow_round_corners.png" COMP;