Update example versions and remove extra argument

[VeArnold]

a) one of the examples has 'store' configured twice

b) as per Microsoft documentation the last digit of the version should be zero.

Related to this error when submitting the application to Partner Center via API:

{‘code’: ‘InvalidParameterValue’, ‘details’: ’Package acceptance 
validation error: Apps are not allowed to have a Version with a revision number other than zero 
specified in the app manifest. The package shortcut_keeper.msix specifies 1.0.0.14.’}

[YehudaKremer]

thank you @VeArnold

[YehudaKremer]

Version 2.6.3 published so the changes will show also here: https://pub.dev/packages/msix/example