[gnome-chess] Add provides for old desktop filename

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 01d94db7e64882c890ee060181b65fde9076aa18
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Sun Jul 14 16:01:34 2019 -0500

    Add provides for old desktop filename
    
    This is what GNOME Software used as our app ID in the time before app
    IDs were a thing.

 data/org.gnome.Chess.appdata.xml.in | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/data/org.gnome.Chess.appdata.xml.in b/data/org.gnome.Chess.appdata.xml.in
index c1777a9..1c1153a 100644
--- a/data/org.gnome.Chess.appdata.xml.in
+++ b/data/org.gnome.Chess.appdata.xml.in
@@ -30,6 +30,9 @@
   <update_contact>mcatanzaro_at_gnome.org</update_contact>
   <launchable type="desktop-id">org.gnome.Chess.desktop</launchable>
   <project_group>GNOME</project_group>
+  <provides>
+    <id>gnome-chess.desktop</id>
+  </provides>
   <kudos>
     <kudo>HiDpiIcon</kudo>
     <kudo>ModernToolkit</kudo>