Default screenshot in appdata does not exist.

The default screenshot in appdata file (https://www.qupzilla.com/screens/gnome.png) does not exist. Redirects to https://www.qupzilla.com/home.

linux/appdata/org.kde.Falkon.appdata.xml

@@ -112,20 +112,7 @@
     <p xml:lang="x-test">xxFalkon's main aim is to be a very fast and very stable QtWebKit browser available to everyone. There are already a lot of QtWebKit browsers available, but they are either bound to the KDE environment, not actively developed or very unstable and miss important features. Falkon, a multi-platform, modern and actively developed browser, is here to fill this gap by providing a very stable browsing experience.xx</p>
   </description>
   <screenshots>
-    <screenshot type="default" width="864" height="567">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="ast">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="ca">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="ca-valencia">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="cs">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="de">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="en-GB">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="es">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="nl">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="pt">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="sk">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="sv">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="uk">https://www.qupzilla.com/screens/gnome.png</screenshot>
-    <screenshot type="default" width="864" height="567" xml:lang="x-test">xxhttps://www.qupzilla.com/screens/gnome.pngxx</screenshot>
+    <screenshot type="default" width="871" height="568">https://www.qupzilla.com/screens/gnome_window.png</screenshot>
     <screenshot width="948" height="638">https://www.qupzilla.com/screens/kde_window.png</screenshot>
     <screenshot width="948" height="638" xml:lang="ast">https://www.qupzilla.com/screens/kde_window.png</screenshot>
     <screenshot width="948" height="638" xml:lang="ca">https://www.qupzilla.com/screens/kde_window.png</screenshot>