Revert "Standalone item group"

This reverts commit d97f69e72b.

app/build.gradle

@@ -4,7 +4,7 @@ apply plugin: 'kotlin-android'
 apply plugin: 'de.undercouch.download'
 
 def getVersionCode = { -> return 1801 }
-def getRevision = { -> "f" }
+def getRevision = { -> "c" }
 def getReleaseName = { -> return "Draconyx" }
 // https://en.wikipedia.org/wiki/List_of_dinosaur_genera
 

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

@@ -192,7 +192,7 @@ public class FragmentAccounts extends FragmentBase {
                         return null;
                 }
 
-                View header = inflater.inflate(R.layout.item_group, null, false);
+                View header = inflater.inflate(R.layout.item_group, parent, false);
                 TextView tvCategory = header.findViewById(R.id.tvCategory);
                 TextView tvDate = header.findViewById(R.id.tvDate);
 

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

@@ -264,7 +264,7 @@ public class FragmentFolders extends FragmentBase {
                             return null;
                     }
 
-                    View header = inflater.inflate(R.layout.item_group, null, false);
+                    View header = inflater.inflate(R.layout.item_group, parent, false);
                     TextView tvCategory = header.findViewById(R.id.tvCategory);
                     TextView tvDate = header.findViewById(R.id.tvDate);
 

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

@@ -139,7 +139,7 @@ public class FragmentIdentities extends FragmentBase {
                         return null;
                 }
 
-                View header = inflater.inflate(R.layout.item_group, null, false);
+                View header = inflater.inflate(R.layout.item_group, parent, false);
                 TextView tvCategory = header.findViewById(R.id.tvCategory);
                 TextView tvDate = header.findViewById(R.id.tvDate);
 

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

@@ -771,7 +771,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
                 if (!ch && !dh)
                     return null;
 
-                View header = inflater.inflate(R.layout.item_group, null, false);
+                View header = inflater.inflate(R.layout.item_group, parent, false);
                 TextView tvCategory = header.findViewById(R.id.tvCategory);
                 TextView tvDate = header.findViewById(R.id.tvDate);
                 tvCategory.setVisibility(ch ? View.VISIBLE : View.GONE);