Password generator: Remove the decimal places for the entropy value

[MarcStrauch]

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Brief Summary

Remove the decimal places for the entropy value in the password generator.

Example

Context

The entropy value is currently displayed with two decimal places behind the comma. But when using the password generator the typical entropy value probably varies between 1 and let's say 300. In a range between 1 and 300 two additional decimal places are not really helping much or are providing additionally relevant information. To have a cleaner interface, those decimal places could be removed.