swap method
Implementation
void swap(int index) {
if (isOneToOneCall && isVideoCall && !videoMuted.value) {
var itemToReplace =
callList.indexWhere((y) => y.userJid!.value == pinnedUserJid.value);
var itemToRemove = callList[index];
var userJid = itemToRemove.userJid?.value;
pinnedUserJid(userJid);
callList.swap(index, itemToReplace);
}
}