Add messages forwarding (#288)

app/src/main/res/drawable/ic_message_forward_24dp.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,8V4l8,8 -8,8v-4H4V8z" />
+</vector>

app/src/main/res/menu/action_menu_message_preview.xml

@@ -7,4 +7,10 @@
         android:orderInCategory="1"
         android:title="@string/message_reply"
         app:showAsAction="ifRoom" />
+    <item
+        android:id="@+id/messagePreviewMenuForward"
+        android:icon="@drawable/ic_message_forward_24dp"
+        android:orderInCategory="1"
+        android:title="@string/message_forward"
+        app:showAsAction="ifRoom" />
 </menu>

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

@@ -140,6 +140,7 @@
     <string name="message_to">Do:</string>
     <string name="message_date">Data: %s</string>
     <string name="message_reply">Odpowiedz</string>
+    <string name="message_forward">Prześlij dalej</string>
     <string name="message_subject">Temat</string>
     <string name="message_content">Treść</string>
     <string name="message_send_successful">Wiadomość wysłana pomyślnie</string>

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

@@ -134,6 +134,7 @@
     <string name="message_to">To:</string>
     <string name="message_date">Date: %s</string>
     <string name="message_reply">Reply</string>
+    <string name="message_forward">Forward</string>
     <string name="message_subject">Subject</string>
     <string name="message_content">Content</string>
     <string name="message_send_successful">Message sent successfully</string>