feat: add flutter app Ory Network example (ory#82)

* feat: get current session information

* feat: create login flow

* feat: login with email and password

* feat: register with email and password

* fix: handle all errors incl deserialization error

* feat: logout & get session on home page init

* feat: show session information

* feat: add design and refactor blocs

* fix: change package and folder name

* fix: change package name

* docs: update README.md

* refactor: delete unused icon

* refactor: remove unused packages

* chore: format code

* refactor: add missing package and delete unused test

* chore: display components dynamically

* chore: clean up and format code

* fix: aal2 navigation

* chore: remove unnecessary code

* chore: fix typo and rename variables

* chore: separate exception handlings

* fix: prevent null exception

flutter-ory-network/android/app/src/main/kotlin/com/example/kratos_flutter/MainActivity.kt

@@ -0,0 +1,6 @@
+package com.example.ory_network_flutter
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}

flutter-ory-network/lib/blocs/auth/auth_bloc.dart

@@ -52,17 +52,15 @@ class AuthBloc extends Bloc<AuthEvent, AuthState> {
 
       final session = await repository.getCurrentSessionInformation();
 
-      emit(AuthState.authenticated(isLoading: false, session: session));
-    } on CustomException catch (e) {
-      if (e case UnauthorizedException _) {
-        emit(const AuthState.unauthenticated());
-      } else if (e case TwoFactorAuthRequiredException _) {
-        emit(const AuthState.aal2Requested());
-      } else if (e case UnknownException _) {
-        emit(state.copyWith(isLoading: false, errorMessage: e.message));
-      } else {
-        emit(state.copyWith(isLoading: false));
-      }
+      emit(AuthState.authenticated(session: session));
+    } on UnauthorizedException catch (_) {
+      emit(const AuthState.unauthenticated());
+    } on TwoFactorAuthRequiredException catch (_) {
+      emit(const AuthState.aal2Requested());
+    } on UnknownException catch (e) {
+      emit(state.copyWith(isLoading: false, errorMessage: e.message));
+    } catch (_) {
+      emit(state.copyWith(isLoading: false));
     }
   }
 
@@ -73,14 +71,12 @@ class AuthBloc extends Bloc<AuthEvent, AuthState> {
       await repository.logout();
 
       emit(const AuthState.unauthenticated());
-    } on CustomException catch (e) {
-      if (e case UnauthorizedException _) {
-        emit(const AuthState.unauthenticated());
-      } else if (e case UnknownException _) {
-        emit(state.copyWith(isLoading: false, errorMessage: e.message));
-      } else {
-        emit(state.copyWith(isLoading: false));
-      }
+    } on UnauthorizedException catch (_) {
+      emit(const AuthState.unauthenticated());
+    } on UnknownException catch (e) {
+      emit(state.copyWith(isLoading: false, errorMessage: e.message));
+    } catch (_) {
+      emit(state.copyWith(isLoading: false));
     }
   }
 }