Small improvement

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

@@ -136,7 +136,7 @@ public class AdapterFolder extends RecyclerView.Adapter<AdapterFolder.ViewHolder
             rvChilds.setLayoutManager(llm);
             rvChilds.setNestedScrollingEnabled(false);
 
-            DividerItemDecoration itemDecorator = new DividerItemDecoration(context, DividerItemDecoration.VERTICAL);
+            DividerItemDecoration itemDecorator = new DividerItemDecoration(context, llm.getOrientation());
             itemDecorator.setDrawable(context.getDrawable(R.drawable.divider));
             rvChilds.addItemDecoration(itemDecorator);
 

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

@@ -88,7 +88,7 @@ public class FragmentAccounts extends FragmentBase {
         LinearLayoutManager llm = new LinearLayoutManager(getContext());
         rvAccount.setLayoutManager(llm);
 
-        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL);
+        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), llm.getOrientation());
         itemDecorator.setDrawable(getContext().getDrawable(R.drawable.divider));
         rvAccount.addItemDecoration(itemDecorator);
 

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

@@ -66,7 +66,7 @@ public class FragmentAnswers extends FragmentBase {
         LinearLayoutManager llm = new LinearLayoutManager(getContext());
         rvAnswer.setLayoutManager(llm);
 
-        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL);
+        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), llm.getOrientation());
         itemDecorator.setDrawable(getContext().getDrawable(R.drawable.divider));
         rvAnswer.addItemDecoration(itemDecorator);
 

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

@@ -133,7 +133,7 @@ public class FragmentFolders extends FragmentBase {
         LinearLayoutManager llm = new LinearLayoutManager(getContext());
         rvFolder.setLayoutManager(llm);
 
-        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL);
+        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), llm.getOrientation());
         itemDecorator.setDrawable(getContext().getDrawable(R.drawable.divider));
         rvFolder.addItemDecoration(itemDecorator);
 

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

@@ -68,7 +68,7 @@ public class FragmentIdentities extends FragmentBase {
         LinearLayoutManager llm = new LinearLayoutManager(getContext());
         rvIdentity.setLayoutManager(llm);
 
-        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL);
+        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), llm.getOrientation());
         itemDecorator.setDrawable(getContext().getDrawable(R.drawable.divider));
         rvIdentity.addItemDecoration(itemDecorator);
 

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

@@ -310,7 +310,7 @@ public class FragmentMessages extends FragmentBase {
         LinearLayoutManager llm = new LinearLayoutManager(getContext());
         rvMessage.setLayoutManager(llm);
 
-        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL) {
+        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), llm.getOrientation()) {
             @Override
             public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
                 if (view.findViewById(R.id.clItem).getVisibility() == View.GONE)

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

@@ -81,7 +81,7 @@ public class FragmentRules extends FragmentBase {
         adapter = new AdapterRule(getContext(), getViewLifecycleOwner());
         rvRule.setAdapter(adapter);
 
-        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL);
+        DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), llm.getOrientation());
         itemDecorator.setDrawable(getContext().getDrawable(R.drawable.divider));
         rvRule.addItemDecoration(itemDecorator);