FIX Password Reset Flow in SupaEmailAuth (#89)

* FIX #88

* Fix use of BuildContext's across async gaps

* Fix use of BuildContext's across async gaps in SupaEmailAuth and SupaResetPassword

Author: henry2man

lib/src/components/supa_email_auth.dart

@@ -298,10 +298,22 @@ class _SupaEmailAuthState extends State<SupaEmailAuth> {
                       redirectTo: widget.redirectTo,
                     );
                     widget.onPasswordResetEmailSent?.call();
+                    // FIX use_build_context_synchronously
+                    if (!context.mounted) return;
+                    context.showSnackBar(localization.passwordResetSent);
+                    setState(() {
+                      _forgotPassword = false;
+                    });
                   } on AuthException catch (error) {
                     widget.onError?.call(error);
                   } catch (error) {
                     widget.onError?.call(error);
+                  } finally {
+                    if (mounted) {
+                      setState(() {
+                        _isLoading = false;
+                      });
+                    }
                   }
                 },
                 child: Text(localization.sendPasswordReset),

lib/src/components/supa_reset_password.dart

@@ -78,6 +78,9 @@ class _SupaResetPasswordState extends State<SupaResetPassword> {
                   ),
                 );
                 widget.onSuccess.call(response);
+                // FIX use_build_context_synchronously
+                if (!context.mounted) return;
+                context.showSnackBar(localization.passwordResetSent);
               } on AuthException catch (error) {
                 if (widget.onError == null && context.mounted) {
                   context.showErrorSnackBar(error.message);

lib/src/localizations/supa_email_auth_localization.dart

@@ -9,6 +9,7 @@ class SupaEmailAuthLocalization {
   final String dontHaveAccount;
   final String haveAccount;
   final String sendPasswordReset;
+  final String passwordResetSent;
   final String backToSignIn;
   final String unexpectedError;
 
@@ -24,6 +25,7 @@ class SupaEmailAuthLocalization {
     this.dontHaveAccount = 'Don\'t have an account? Sign up',
     this.haveAccount = 'Already have an account? Sign in',
     this.sendPasswordReset = 'Send password reset email',
+    this.passwordResetSent = 'Password reset email has been sent',
     this.backToSignIn = 'Back to sign in',
     this.unexpectedError = 'An unexpected error occurred',
   });

lib/src/localizations/supa_reset_password_localization.dart

@@ -3,12 +3,14 @@ class SupaResetPasswordLocalization {
   final String passwordLengthError;
   final String updatePassword;
   final String unexpectedError;
+  final String passwordResetSent;
 
   const SupaResetPasswordLocalization({
     this.enterPassword = 'Enter your password',
     this.passwordLengthError =
         'Please enter a password that is at least 6 characters long',
     this.updatePassword = 'Update Password',
     this.unexpectedError = 'An unexpected error occurred',
+    this.passwordResetSent = 'Password reset email has been sent',
   });
 }