Use NavHandleLongPressInputConsumer regardless of flags.

This way we can still log long press attempts even when the
feature flags or settings are disabled.

We always log LAUNCHER_LONG_PRESS_NAVBAR when a long press is
detected, even if nothing else happens.

Additionally, we log LAUNCHER_DEEP_PRESS_NAVBAR if the long
press was short-circuited by a deep press. In this case both
logs will appear.

If ENABLE_LPNH_DEEP_PRESS is false, it's possible that
LAUNCHER_DEEP_PRESS_NAVBAR will be logged without
LAUNCHER_LONG_PRESS_NAVBAR. This is because we log deep press
even if the feature is disabled, but it won't cause long press to
trigger immediately, so the user may release their finger before
the normal long press triggers.

Note: getLongPressRunnable will still return null if the flags or
other checks fail, so nothing will happen beyond logging.

Fix: 313477667
Fix: 310955078
Test: Manual with wwlogcat with flags in various states
Flag: NA
Change-Id: I40ceb5a22b364c2d5d6e4fdabb546b81c84354eb