Integrate LauncherApps API with AppSearch

- getShortcutIntent and startShortcut now additionally checks AppSearch
if specifed shortcuts cannot be found in memory.
- getShortcutIconFd and getShortcutIconUri now additionally checks
AppSearch if specified shortcuts cannot be found in memory.
- getShortcutIconResId is unchanged since the api is deprecated.
- Introduced ShortcutQuery.FLAG_GET_PERSISTED_DATA, when used in
getShortcuts, it additionally performs the check in AppSearch.

Bug: 151359749
Test: atest CtsShortcutManagerTestCases
Change-Id: I0e56e3d0261fc0a3cf0ab4c5decbbd59ac3d7d29