return 0 bal when user not in locked funds store

x/colinearcore/keeper/grpc_query_locked_funds.go

@@ -31,7 +31,9 @@ func (k Keeper) LockedFunds(goCtx context.Context, req *types.QueryLockedFundsRe
 	var userAmtStr string
 	userAmtStr, ok = lockedUsers.Users[req.Owner]
 	if !ok {
-		return nil, fmt.Errorf("user %s has not locked any funds", req.Owner)
+		// doesn't exist in dict -> 0 funds locked
+		userAmtStr = "0"
+		// return nil, fmt.Errorf("user %s has not locked any funds", req.Owner)
 	}
 
 	return &types.QueryLockedFundsResponse{