Launcher3: Switch to icon pack theming preview

Ref:
https://github.com/crdroidandroid/android_packages_apps_Launcher3/commit/8155a4f3db5888b578aecb8904529a22f962968e
https://github.com/crdroidandroid/android_packages_apps_Launcher3/commit/174d11c6fa88e85920ec078af506fc56ef3bccd4

Tweaked to our usage

Change-Id: I82b16d0d4bf5f8e9ef1dca3dc64e4aa1714e04f1
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Signed-off-by: Jackeagle <jackeagle102@gmail.com>
20 files changed