Create Wallet Footer for Double Tap Power gesture settings

Add a footer explaining why the gesture does not work for wallet as a
target action if Quick Access Wallet Service is not available for the
current wallet role holder. Prompt the user to change their default
wallet role holder via a deeplink to the default wallet app permission
control page.

Android Settings Feature Request: b/380287172

Bug: 407619230
Test: atest tests/robotests/src/com/android/settings/gestures/DoubleTapPowerForWalletPreferenceControllerTest
Test: atest tests/robotests/src/com/android/settings/gestures/DoubleTapPowerWalletFooterPreferenceControllerTest
Test: Manually Tested.
Flag: android.service.quickaccesswallet.launch_wallet_option_on_power_double_tap

Change-Id: I097648d7c96d6cb61c38e1e17cee8a5394054cb6