SwiftUI로 커스텀 배너 만들기
https://jboullianne.medium.com/notification-banner-using-swiftui-d7d3cd2fa24b
iOS 푸쉬 노티피케이션
https://nicgoon.tistory.com/203
APNS 설정
https://spiralmoon.tistory.com/entry/Apple-Apple-push-notification-service-APNs-설정하기
SwiftUI 텍스트에디터 디자인
https://serialcoder.dev/text-tutorials/swiftui/texteditor-in-swiftui/
SwiftUI 뷰 모디파이어
https://dndacademy.github.io/swiftui-view-modifier/
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