Added outbox to legend

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

@@ -58,6 +58,29 @@
             app:layout_constraintStart_toEndOf="@id/ivInbox"
             app:layout_constraintTop_toBottomOf="@id/tvUnified" />
 
+        <eu.faircode.email.FixedImageView
+            android:id="@+id/ivOutbox"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:contentDescription="@string/title_legend_outbox"
+            android:padding="12dp"
+            app:layout_constraintBottom_toBottomOf="@+id/tvOutbox"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/tvOutbox"
+            app:srcCompat="@drawable/twotone_outbox_24" />
+
+        <eu.faircode.email.FixedTextView
+            android:id="@+id/tvOutbox"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical"
+            android:minHeight="48dp"
+            android:text="@string/title_legend_outbox"
+            android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@id/ivOutbox"
+            app:layout_constraintTop_toBottomOf="@id/tvInbox" />
+
         <eu.faircode.email.FixedImageView
             android:id="@+id/ivDrafts"
             android:layout_width="wrap_content"
@@ -79,7 +102,7 @@
             android:textAppearance="@style/TextAppearance.AppCompat.Medium"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toEndOf="@id/ivDrafts"
-            app:layout_constraintTop_toBottomOf="@id/tvInbox" />
+            app:layout_constraintTop_toBottomOf="@id/tvOutbox" />
 
         <eu.faircode.email.FixedImageView
             android:id="@+id/ivSent"
@@ -90,7 +113,7 @@
             app:layout_constraintBottom_toBottomOf="@+id/tvSent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="@+id/tvSent"
-            app:srcCompat="@drawable/twotone_forward_24" />
+            app:srcCompat="@drawable/twotone_send_24" />
 
         <eu.faircode.email.FixedTextView
             android:id="@+id/tvSent"

app/src/main/res/values/strings.xml

@@ -1579,6 +1579,7 @@
 
     <string name="title_legend_unified">Unified inbox / primary account</string>
     <string name="title_legend_inbox">Inbox</string>
+    <string name="title_legend_outbox">Outbox</string>
     <string name="title_legend_drafts">Drafts</string>
     <string name="title_legend_sent">Sent</string>
     <string name="title_legend_archive">Archive</string>