chore: reformat application codes

src/main/kotlin/com/sangdol/demo/DemoEntity.kt

@@ -1,10 +1,6 @@
 package com.sangdol.demo
 
-import jakarta.persistence.Entity
-import jakarta.persistence.GeneratedValue
-import jakarta.persistence.GenerationType
-import jakarta.persistence.Id
-import jakarta.persistence.Table
+import jakarta.persistence.*
 
 @Entity
 @Table(name = "demo")

src/main/resources/data.sql

@@ -1,5 +1,5 @@
-INSERT INTO demo(name, age) VALUES
-    ('John Doe', 30),
+INSERT INTO demo(name, age)
+VALUES ('John Doe', 30),
        ('Jane Smith', 25),
        ('Alice Johnson', 28),
        ('Bob Brown', 35),