[meld/ui-next] Move the open-externally menu item to the file section

[Kai Willadsen <kaiw src gnome org>]

commit 6ce6714dbfec5d4f55fd15c7b16fad7b77fe9cb4
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Wed Mar 20 09:08:39 2019 +1000

    Move the open-externally menu item to the file section
    
    This feels like it makes sense, and also gets rid of a single-item
    submenu.

 meld/resources/gtk/menus.ui | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)
---
diff --git a/meld/resources/gtk/menus.ui b/meld/resources/gtk/menus.ui
index 21a2ec9a..11f51659 100644
--- a/meld/resources/gtk/menus.ui
+++ b/meld/resources/gtk/menus.ui
@@ -34,6 +34,10 @@
         <attribute name="label" translatable="yes">Revert files…</attribute>
         <attribute name="action">view.revert</attribute>
       </item>
+      <item>
+        <attribute name="label" translatable="yes">Open Externally</attribute>
+        <attribute name="action">view.open-external</attribute>
+      </item>
     </section>
     <section>
       <attribute name="id">find-section</attribute>
@@ -102,19 +106,6 @@
         </section>
       </submenu>
     </section>
-    <section>
-      <attribute name="id">submenu-section</attribute>
-      <submenu>
-        <attribute name="label" translatable="yes">Tools</attribute>
-        <section>
-          <attribute name="id">document-tool-section</attribute>
-          <item>
-            <attribute name="label" translatable="yes">Open Externally</attribute>
-            <attribute name="action">view.open-external</attribute>
-          </item>
-        </section>
-      </submenu>
-    </section>
     <section>
       <attribute name="id">application-section</attribute>
       <item>