ui: move the buttons in the notifications

When incoming call, the hangup button is to the right of the accept
button in the notification. In the callfragment, it's the opposite.
This commit changes order of this buttons in the notification to be
consistent.

Change-Id: I11faec0e6796ecf553923cbb70936827c60976d9
Tuleap: #1450

ring-android/app/src/main/java/cx/ring/utils/ActionHelper.java

@@ -240,15 +240,15 @@ public class ActionHelper {
                         .setContentText(ctx.getText(R.string.notif_incoming_call))
                         .setContentIntent(gotoIntent)
                         .setFullScreenIntent(gotoIntent, true)
-                        .addAction(R.drawable.ic_action_accept, ctx.getText(R.string.action_call_accept),
+                        .addAction(R.drawable.ic_call_end_white, ctx.getText(R.string.action_call_decline),
                                 PendingIntent.getService(ctx, new Random().nextInt(),
-                                        new Intent(LocalService.ACTION_CALL_ACCEPT)
+                                        new Intent(LocalService.ACTION_CALL_REFUSE)
                                                 .setClass(ctx, LocalService.class)
                                                 .setData(callUri),
                                         PendingIntent.FLAG_ONE_SHOT))
-                        .addAction(R.drawable.ic_call_end_white, ctx.getText(R.string.action_call_decline),
+                        .addAction(R.drawable.ic_action_accept, ctx.getText(R.string.action_call_accept),
                                 PendingIntent.getService(ctx, new Random().nextInt(),
-                                        new Intent(LocalService.ACTION_CALL_REFUSE)
+                                        new Intent(LocalService.ACTION_CALL_ACCEPT)
                                                 .setClass(ctx, LocalService.class)
                                                 .setData(callUri),
                                         PendingIntent.FLAG_ONE_SHOT))