[CHORE] gitignore 항목 추가 (#903)

Author: KxxHyoRim

.gitignore

@@ -170,4 +170,7 @@ release/
 
 !/gradle/wrapper/gradle-wrapper.jar
 
-# End of https://www.toptal.com/developers/gitignore/api/kotlin,androidstudio
+# End of https://www.toptal.com/developers/gitignore/api/kotlin,androidstudio
+/.idea/sonarlint/*
+/.idea/dbnavigator.xml
+/.idea/migrations.xml