change the name from favorites to keep_up_to_date

res/values/strings.xml

@@ -200,7 +200,7 @@
 	<string name="auth_can_not_auth_against_server">Cannot authenticate against this server</string>
     <string name="auth_account_does_not_exist">Account does not exist in the device yet</string>
     
-    <string name="fd_keep_in_sync">Keep file up to date</string>
+    <string name="fd_keep_in_sync">Favorite</string>
     <string name="common_rename">Rename</string>
     <string name="common_remove">Remove</string>
     <string name="confirmation_remove_alert">"Do you really want to remove %1$s?"</string>