fixed build errors

code/src/Fitbot/app/src/main/java/com/example/fitbot/EndScreenActivity.java

@@ -5,6 +5,8 @@ import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
 import android.widget.Button;
 
+import com.example.fitbot.ui.activities.MainActivity;
+
 public class EndScreenActivity extends AppCompatActivity {
 
     @Override

code/src/Fitbot/app/src/main/res/values/themes.xml

@@ -6,9 +6,8 @@
         <item name="colorPrimaryDark">@color/purple_700</item>
         <item name="colorAccent">@color/teal_200</item>
         <!-- Customize your theme here. -->
-        <?xml version="1.0" encoding="utf-8"?>
-        <resources>
-            <!-- Style for general buttons -->
-        </resources>
     </style>
+
+    <!-- Style for general buttons -->
+    <!-- Add button styles here, if needed -->
 </resources>