* [MM-13704] Updated CLI to set DeleteAt in groupmemebrs * [MM-13704] Updated Mock Test * [MM-13704] Refactored to use current pattern to write function * [MM-13704] Small text change * [MM-13704] updated translation * [MM-13704] Updated params of error function * [MM-13704] Fixed confusion between channel and group store * [MM-13704] Addressed PR comments * [MM-13704] Added test case * [MM-13704] Fixed err declaration