Merge "[OneSearch] Add onesearch plugin api to trigger image from URL." into sc-v2-dev am: e9652c9a63 am: 64ff0fad31

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16134702

Change-Id: I7f165a4e5427e7e21a9760000469db6a57353e51