Re-translate the Japanese version (#1871)

* Retranslate Japanese docs with GPT-5.4

* Retranslate Japanese code with GPT-5.4

ja/codes/go/chapter_computational_complexity/space_complexity_test.go

@@ -0,0 +1,26 @@
+// File: space_complexity_test.go
+// Created Time: 2022-12-15
+// Author: cathay (cathaycchen@gmail.com)
+
+package chapter_computational_complexity
+
+import (
+	"testing"
+
+	. "github.com/krahets/hello-algo/pkg"
+)
+
+func TestSpaceComplexity(t *testing.T) {
+	n := 5
+	// 定数階
+	spaceConstant(n)
+	// 線形階
+	spaceLinear(n)
+	spaceLinearRecur(n)
+	// 二乗階
+	spaceQuadratic(n)
+	spaceQuadraticRecur(n)
+	// 指数オーダー
+	root := buildTree(n)
+	PrintTree(root)
+}