Merge pull request #79 from CSC207-2022F-UofT/feature-1-and-2-login-and-signup

Got rid of RegisterScreen bug

Author: Edward-1117

src/main/java/login_and_signup_use_case/login_and_signup_use_case_screens/RegisterScreen.java

@@ -113,6 +113,7 @@ public void actionPerformed(ActionEvent evt) {
                         newUser.getSignedUpPassword());
                 try {
                     new HomePage(user);
+                    dispose();
                 } catch (IOException e) {
                     throw new RuntimeException(e);
                 }