Await do not await until the permission was accepted or denied

[danielgomezrico]

Hi, thanks for this library.

All show methods do not wait until the user did the action to return:

final result = await DisableBatteryOptimization.showDisableAllOptimizationsSettings
print(result); // Prints true even if the user is still seeing the dialog

Expected

It should wait until the dialog is accepted/denied and then return with that value true/false