Thank you for adding the key grouping functionality in the latest release of GpgFrontend!

I’d like to propose a few enhancements:

1. Make Email Optional in Key Group Creation

Currently, adding an email address is mandatory when creating a key group. This requirement feels unnecessary, as a group can often be identified by its name alone. Make the email field optional during key group creation, allowing users to define groups using only a name.

2. Set Uniform Owner Trust Level for All Keys in a Group

Introduce an option to set a single Owner Trust Level for a key group. When applied, this trust level should propagate to all keys within the group, streamlining trust management.

3. Add a "Key Groups" Tab in Key Toolbox and Key Database Management

Add a "Key Groups" tab to the Key Toolbox on the main application window and in the Key Database Management section, similar to existing tabs, to allow users to view and manage their key groups directly.

Thanks a lot for your consideration.

Best Regards!