Layout fixes

app/src/main/res/layout/fragment_accounts.xml

@@ -8,14 +8,14 @@
 
     <android.support.v7.widget.RecyclerView
         android:id="@+id/rvAccount"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
         android:scrollbarStyle="outsideOverlay"
         android:scrollbars="vertical"
-        app:layout_constraintBottom_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="parent" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <ProgressBar
         android:id="@+id/pbWait"
@@ -23,10 +23,10 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:indeterminate="true"
-        app:layout_constraintBottom_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="parent" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <android.support.constraint.Group
         android:id="@+id/grpReady"

app/src/main/res/layout/fragment_folders.xml

@@ -8,14 +8,14 @@
 
     <android.support.v7.widget.RecyclerView
         android:id="@+id/rvFolder"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
         android:scrollbarStyle="outsideOverlay"
         android:scrollbars="vertical"
-        app:layout_constraintBottom_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="parent" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <ProgressBar
         android:id="@+id/pbWait"
@@ -23,10 +23,10 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:indeterminate="true"
-        app:layout_constraintBottom_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="parent" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <android.support.constraint.Group
         android:id="@+id/grpReady"

app/src/main/res/layout/fragment_identities.xml

@@ -8,14 +8,14 @@
 
     <android.support.v7.widget.RecyclerView
         android:id="@+id/rvIdentity"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
         android:scrollbarStyle="outsideOverlay"
         android:scrollbars="vertical"
-        app:layout_constraintBottom_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="parent" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <ProgressBar
         android:id="@+id/pbWait"
@@ -23,10 +23,10 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:indeterminate="true"
-        app:layout_constraintBottom_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="parent" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <android.support.constraint.Group
         android:id="@+id/grpReady"

app/src/main/res/layout/fragment_messages.xml

@@ -12,21 +12,21 @@
         android:layout_height="wrap_content"
         android:text="@string/title_no_messages"
         android:textAppearance="@style/TextAppearance.AppCompat.Medium"
-        app:layout_constraintBottom_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="parent" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <android.support.v7.widget.RecyclerView
         android:id="@+id/rvFolder"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
         android:scrollbarStyle="outsideOverlay"
         android:scrollbars="vertical"
-        app:layout_constraintBottom_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="parent" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <ProgressBar
         android:id="@+id/pbWait"
@@ -34,10 +34,10 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:indeterminate="true"
-        app:layout_constraintBottom_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="parent" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <android.support.constraint.Group
         android:id="@+id/grpReady"