Fix Card scrolling issue
Fix Card scrolling issue

scroll_layer_set_content_size now cancels the current scroll, so set it
only if the frame size has actually changed.

carlo-colombo/dublin-bus-pebble,carlo-colombo/dublin-bus-pebble,sunshineyyy/CatchOneBus,fletchto99/pebblejs,pebble/pebblejs,jiangege/pebblejs-project,fletchto99/pebblejs,pebble/pebblejs,pebble/pebblejs,sunshineyyy/CatchOneBus,sunshineyyy/CatchOneBus,pebble/pebblejs,carlo-colombo/dublin-bus-pebble,sunshineyyy/CatchOneBus,carlo-colombo/dublin-bus-pebble,carlo-colombo/dublin-bus-pebble,pebble/pebblejs,fletchto99/pebblejs,fletchto99/pebblejs,fletchto99/pebblejs,jiangege/pebblejs-project,jiangege/pebblejs-project,sunshineyyy/CatchOneBus,jiangege/pebblejs-project,jiangege/pebblejs-project