Is your feature request related to a problem? Please describe the impact that the lack of the feature requested is creating.

In HeadlampUI, when we select more than one namespaces from a filter it only shows +N . If the user want to see what options they have selected they won't able to see those. unless they open the nampespaces options.

Describe the solution you'd like

Options can be shown by using a list. so when the user hover to + sign the list will appear.

What users will benefit from this feature?

[What type of users may be interested in this feature? What kind of Headlamp setup is likely used. (e.g. WSL users / Helm chart users / In-Cluster users / Plugin developers)]

Are you able to implement this feature?

Yes I will propose a PR.

Additional context

[If needed, add any other context or screenshots about the feature request here.]