Make the new pose picker button text support-only

I'm playing with using text to call more attention to this button, but
I'm not altogether pleased with the design yet. I'll leave it there for
me and Support users, but hide it for most people until we've got a
more complete concept.

app/javascript/wardrobe-2020/WardrobePage/PosePicker.js

@@ -269,8 +269,10 @@ function PosePickerButton({ pose, isOpen, ...props }, ref) {
           ref={ref}
         >
           <EmojiImage src={getIcon(pose)} alt="" />
-          <Box width=".5em" />
-          {getLabel(pose)}
+          <SupportOnly>
+            <Box width=".5em" />
+            {getLabel(pose)}
+          </SupportOnly>
         </Button>
       )}
     </ClassNames>