Show badges for new messages notification only

.idea/misc.xml

@@ -25,7 +25,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/src/main/java/eu/faircode/email/ApplicationEx.java

@@ -67,6 +67,7 @@ public class ApplicationEx extends Application {
                     getString(R.string.channel_service),
                     NotificationManager.IMPORTANCE_MIN);
             service.setSound(null, Notification.AUDIO_ATTRIBUTES_DEFAULT);
+            service.setShowBadge(false);
             nm.createNotificationChannel(service);
 
             NotificationChannel notification = new NotificationChannel(
@@ -79,6 +80,7 @@ public class ApplicationEx extends Application {
                     "error",
                     getString(R.string.channel_error),
                     NotificationManager.IMPORTANCE_HIGH);
+            error.setShowBadge(false);
             nm.createNotificationChannel(error);
         }
     }