hide already in a groups

[moolight-seashell]

Describe your suggested feature

whe we have a lot of subscuped account it's really anoying to use groups because we cannot be sure to not forget one

so it will be great if , in the group edit screen if we can hide all the account already in another groups

Other details

No response

Acknowledgements

• I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.
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[Bnyro]

duplicate of 3rd last point at #3558