[pan] fix (appdata): change appstream id

[Dominique Dumont <ddumont src gnome org>]

commit b7e7826b4c5b0a5ef8f858eb0ca0a6f9383ce714
Author: Dominique Dumont <dod debian org>
Date:   Sun Sep 19 18:12:06 2021 +0200

    fix (appdata): change appstream id
    
    See
    https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html#spec-component-filespec
    
    Since pan is hosted by Gnome, let's use Gnome's tld

 pan.appdata.xml.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/pan.appdata.xml.in b/pan.appdata.xml.in
index 4c61053..fd3d6db 100644
--- a/pan.appdata.xml.in
+++ b/pan.appdata.xml.in
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop">
-  <id>pan.desktop</id>
+  <id>org.gnome.pan.desktop</id>
   <metadata_license>CC0-1.0</metadata_license>
   <name>Pan Newsreader</name>
   <summary>Read and post Usenet articles</summary>