Fix SwitchImeWindowsFromGestureNavTest faluire on tablet devices

Use CL[1]'s new added quick-switch methods in TAPL to ignore taskbar
visibility verification for preventing false-alarm failure when
switching to the IME test activity on the tablet test.

[1]: Id0a35561523d733b8434acb702ec7dcaa466a1c2

Fix: 228012334
Test: atest FlickerTests:SwitchImeWindowsFromGestureNavTest
in tablet devices

Change-Id: I73813e7c54941cec5f8749b35e577164815b455a