inviteShopMember clears account groups for other shops

[mowafy]

Issue Description

Sending an invitation to already active account clears its already assigned groups

Steps to Reproduce

1. Sign in as an admin
2. Select a shop
3. Invite user by email and set an account group for the current shop
4. If user was already in a group of another shop, that group will be removed from account groups

Possible Solution

In case of an active user: use addAccountToGroup instead of updateGroupsForAccounts

Versions

reaction 3.11.0

[rheasharma13]

Hi @zenweasel , can I please work on this?

[brent-hoover]

@rheasharma13 assigned to you

[vibh1103]

Hi @zenweasel can i pick this task ?

[delagroove]

Hi @vibh1103 , you can pick this task