Merge "optimization of searching apps in Chinese" am: a0357329e0 am: f655c6e433 am: b634086d6c am: 27ae39420e am: 44150f8da4

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/1425241

Change-Id: I1b270e7153c41789fb6a7eba88f29b0baa27780e