Append application name to content description for direct share targets

The direct share targets `label` will be the name of the receiving
device, so we also need to append the application name for a better
readout

Fix: 380008872
Test: MANUAL. Talkback on. Open an app with a url or image. Open Recents
. Select the url or image AiAi chip. Select the first direct share
target. Talkback should read the targets name and application name.
Share. App should dismiss.
Flag: EXEMPT bugfix

Change-Id: I3d7df44d239ae9b8a3a62b7343e65bcd6a2e9939