Correctly set parent activities and API level

app/build.gradle.kts

@@ -30,7 +30,7 @@ android {
   }
 
   defaultConfig {
-    minSdkVersion(15)
+    minSdkVersion(16)
     targetSdkVersion(26)
 
     applicationId = "de.kuschku.quasseldroid_ng.test"

app/src/main/AndroidManifest.xml

@@ -22,12 +22,14 @@
       android:name=".ui.setup.accounts.AccountSetupActivity"
       android:exported="false"
       android:label="@string/app_name"
+      android:parentActivityName=".ui.setup.accounts.AccountSelectionActivity"
       android:theme="@style/SplashTheme"
       android:windowSoftInputMode="adjustResize" />
     <activity
       android:name=".ui.setup.accounts.AccountEditActivity"
       android:exported="false"
       android:label="@string/app_name"
+      android:parentActivityName=".ui.setup.accounts.AccountSelectionActivity"
       android:theme="@style/SplashTheme"
       android:windowSoftInputMode="adjustResize" />
     <activity