add placeholder tsconfig.json

Author: kettanaito

exercises/05.extras/01.problem.vitest-4.0/tsconfig.json

@@ -0,0 +1,4 @@
+{
+	"include": [],
+	"exclude": []
+}

exercises/05.extras/01.solution.vitest-4.0/tsconfig.json

@@ -0,0 +1,4 @@
+{
+	"include": [],
+	"exclude": []
+}