Improve code

Author: patzly

app/src/main/AndroidManifest.xml

@@ -29,7 +29,7 @@
     android:theme="@style/Theme.AppCompat">
 
     <activity
-      android:name=".MainActivity"
+      android:name=".CheckActivity"
       android:exported="true">
 
       <intent-filter>

app/src/main/java/xyz/zedler/patrick/grocy/unlock/MainActivity.java app/src/main/java/xyz/zedler/patrick/grocy/unlock/CheckActivity.java

@@ -19,13 +19,12 @@
 
 package xyz.zedler.patrick.grocy.unlock;
 
-import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.Build;
 import android.os.Bundle;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 
-public class MainActivity extends AppCompatActivity {
+public class CheckActivity extends AppCompatActivity {
 
   private final static int PURCHASED = 1;
   private final static int NOT_PURCHASED = 0;