Shortcut integration with AppSearch (Part 7)

Use optmized queries instead of iterating through every shortcuts where
possible.

Bug: 151359749
Test: atest ShortcutManagerTest1 ShortcutManagerTest2
    ShortcutManagerTest3 ShortcutManagerTest4 ShortcutManagerTest5
    ShortcutManagerTest6 ShortcutManagerTest7 ShortcutManagerTest8
    ShortcutManagerTest9 ShortcutManagerTest10 ShortcutManagerTest11

Change-Id: I85efac531162c2497ba5f84980c3e19e93f6e3bc