1. Refine the battery header view 2. Move stats section to the place above power management 3. Add last full charge battery stat 4. Add the disclaimer as a footer Also update the method name in test file, and this ui changes also fix the header flash problem. Bug: 36576021 Bug: 36494178 Test: RunSettingsRoboTests Change-Id: I9784dbbbe16e61da7287f300183347dd4eee6a2b