Refactoring of matrix helper, cleanup

Author: EliasBinder

.tool-versions

@@ -11,14 +11,8 @@ defmodule QRCode.MatrixHelper do
     # Create new matrix with quiet zone
     {:ok, new_matrix} = Matrix.new({rows + 2 * quiet_zone, cols + 2 * quiet_zone}, value)
 
-    # Copy matrix to new matrix
-    new_matrix = Enum.reduce(0..rows - 1, new_matrix, fn row, acc_matrix ->
-      Enum.reduce(0..cols - 1, acc_matrix, fn col, acc_matrix_inner ->
-        {:ok, element} = Matrix.get_element(matrix, {row, col})
-        {:ok, updated_matrix} = Matrix.update_element(acc_matrix_inner, element, {row + quiet_zone, col + quiet_zone})
-        updated_matrix
-      end)
-    end)
+    # Copy qr code matrix to new matrix
+    {:ok, new_matrix} = Matrix.update_map(new_matrix, matrix, [{quiet_zone, quiet_zone}])
 
     new_matrix
   end