[#247] 회원 탈퇴 후 뷰가 LoginView로 돌아가지 않는 이슈를 해결한다 (#250)

* fix: 로그인 로직과 회원탈퇴 로직 분리

* refactor: 기존에 존재한 변수로 처리하도록 수정

Author: opficdev

DevLog/Infra/Service/SocialLogin/AppleAuthenticationService.swift

@@ -110,8 +110,9 @@ final class AppleAuthenticationService: AuthenticationService {
 
         _ = try await deleteFunction.call(["uid": uid])
 
-        try await signOut(uid)
         try await user?.delete()
+        try await messaging.deleteToken()
+        try Auth.auth().signOut()
     }
 
     func link(uid: String, email: String) async throws {

DevLog/Infra/Service/SocialLogin/GithubAuthenticationService.swift

@@ -87,8 +87,9 @@ final class GithubAuthenticationService: NSObject, AuthenticationService {
 
         _ = try await deleteFunction.call(["uid": uid])
 
-        try await signOut(uid)
         try await user?.delete()
+        try await messaging.deleteToken()
+        try Auth.auth().signOut()
     }
 
     func link(uid: String, email: String) async throws {

DevLog/Infra/Service/SocialLogin/GoogleAuthenticationService.swift

@@ -82,8 +82,11 @@ final class GoogleAuthenticationService: AuthenticationService {
 
         _ = try await deleteFunction.call(["uid": uid])
 
-        try await signOut(uid)
-        try await Auth.auth().currentUser?.delete()
+        try await user?.delete()
+        GIDSignIn.sharedInstance.signOut()
+        try await GIDSignIn.sharedInstance.disconnect()
+        try await messaging.deleteToken()
+        try Auth.auth().signOut()
     }
 
     func link(uid: String, email: String) async throws {

DevLog/Presentation/ViewModel/SettingViewModel.swift

@@ -108,6 +108,7 @@ final class SettingViewModel: Store {
                     send(.setAlert(isPresented: false))
                     send(.setLoading(true))
                     try await deleteAuthuseCase.execute()
+                    sessionUseCase.execute(false)
                 } catch {
                     send(.setAlert(isPresented: true, type: .error))
                 }