[polari] appdata: Update summary and description

[Marge Bot <marge-bot src gnome org>]

commit bcf5b92bff59a45e4ad077bba38493bd5227da18
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Sep 4 04:36:15 2021 +0200

    appdata: Update summary and description
    
    Use a catchier summary in line with the guidelines[0], and remove
    the reference to gnome-shell's built-in chat notifications from the
    descriptions as they aren't enabled on most systems nowadays.
    
    [0] https://gitlab.gnome.org/GNOME/Initiatives/-/wikis/App-Metadata
    
    Part-of: <https://gitlab.gnome.org/GNOME/polari/-/merge_requests/236>

 data/appdata/org.gnome.Polari.appdata.xml.in | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/data/appdata/org.gnome.Polari.appdata.xml.in b/data/appdata/org.gnome.Polari.appdata.xml.in
index dce0bf6e..1a544604 100644
--- a/data/appdata/org.gnome.Polari.appdata.xml.in
+++ b/data/appdata/org.gnome.Polari.appdata.xml.in
@@ -5,7 +5,7 @@
   <metadata_license>CC0-1.0</metadata_license>
   <project_license>GPL-2.0+ and LGPL-2.1+</project_license>
   <name>Polari</name>
-  <summary>An Internet Relay Chat Client for GNOME</summary>
+  <summary>Talk to people on IRC</summary>
   <description>
     <p>
       A simple Internet Relay Chat (IRC) client that is designed to integrate
@@ -15,9 +15,7 @@
     <p>
       You can use Polari to publicly chat with people in a channel, and to
       have private one-to-one conversations. Notifications make sure that
-      you never miss an important message — for private conversations,
-      they even allow you to reply instantly without switching back to the
-      application!
+      you never miss an important message.
     </p>
   </description>
   <screenshots>