[feature]: None filter selection for all possible properties

[marcungeschikts]

Is there an existing issue for this?

• [X] I have searched the existing issues

Summary

Feature request: Add None selection for all possible properties (available today):

• assignee,
• label,
• start date,
• target date (so, not state, mention , created by)

And in the future,maybe:

• Cycles
• Modules

Why should this be worked on?

Today, it is only possible to select None in filter for Priority

[Quadrubo]

In the example of modules, this should also support checking a specific module and none.

So for example If I want to see all issues of the module "Newsletter" and issues that belong to no module, this should be possible.