fix log in issue when incorrect password entered

Frontend/patient_manager/lib/pages/register.dart

@@ -144,6 +144,7 @@ class _RegisterState extends State<Register> {
           // }
         }
       } on AuthException catch (error) {
+        Navigator.of(context).pop();
         loginError(error.message);
         emailController.clear();
         passwordController.clear();

Frontend/patient_manager/lib/pages/signin.dart

@@ -59,21 +59,27 @@ class _SignInState extends State<SignIn> {
           "Authorization": "leatucczyixqwkqqdrhayiwzeofkltds"
         },
       );
+      //print(response.body[])
       if (response.statusCode == 200) {
+        print(response.body);
         var userSignedin = jsonDecode(response.body);
         if (userSignedin["status"] == "OK") {
+          print("here");
           setState(() {
             successfulSignIn = true;
           });
+          Navigator.of(context).pop();
         } else {
-          loginError();
+          Navigator.of(context).pop();
-        }
-      }
-    } on AuthException {
           loginError();
           passwordController.clear();
         }
+      }
+    } on AuthException {
       Navigator.of(context).pop();
+      loginError();
+      passwordController.clear();
+    }
   }
 
   void loginError() {