Moved the code from src to the root.

migration/migration.go

@@ -0,0 +1,15 @@
+package migration
+
+import (
+	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/setting"
+	"gorm.io/gorm"
+)
+
+func Run(db *gorm.DB) error {
+	err := db.AutoMigrate(&setting.Setting{})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}