tdf#91911 Start Center: Use a different icon for Recent Files

Icon imported from Adwaita (32x32/emblems/emblem-documents.png)

Change-Id: I4889644c5d253e1c9b722789336d911b7cdd8af9
(cherry picked from commit a37ed671)

sfx2/uiconfig/ui/startcenter.ui

@@ -81,7 +81,7 @@
   <object class="GtkImage" id="open_all_image1">
     <property name="visible">True</property>
     <property name="can_focus">False</property>
-    <property name="pixbuf">framework/res/folder_32.png</property>
+    <property name="pixbuf">framework/res/recent-documents.png</property>
   </object>
   <object class="GtkImage" id="templates_all_image">
     <property name="visible">True</property>