Use hostname when opening cryptpad from desktop icon

So that copying and pasting a link to a document makes sense

src/freedombone-image-customise

@@ -933,13 +933,16 @@ if [ \$no_of_users -gt 0 ]; then
         echo 'Name=CryptPad' >> /home/$MY_USERNAME/Desktop/cryptpad.desktop
         echo 'Type=Application' >> /home/$MY_USERNAME/Desktop/cryptpad.desktop
         echo 'Comment=Realtime collaborative editing of documents' >> /home/$MY_USERNAME/Desktop/cryptpad.desktop
-        echo "Exec=$BROWSER http://127.0.0.1" >> /home/$MY_USERNAME/Desktop/cryptpad.desktop
+        echo "Exec=$BROWSER http://${HOSTNAME}.local" >> /home/$MY_USERNAME/Desktop/cryptpad.desktop
         echo "Icon=/etc/cryptpad/icon_cryptpad.png" >> /home/$MY_USERNAME/Desktop/cryptpad.desktop
         echo 'Terminal=false' >> /home/$MY_USERNAME/Desktop/cryptpad.desktop
         echo 'Categories=Application;' >> /home/$MY_USERNAME/Desktop/cryptpad.desktop
         chmod +x /home/$MY_USERNAME/Desktop/cryptpad.desktop
         chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Desktop/cryptpad.desktop
     else
+        if ! grep -q "${HOSTNAME}.local" /home/$MY_USERNAME/Desktop/cryptpad.desktop; then
+            sed -i "s|Exec=.*|Exec=$BROWSER http://${HOSTNAME}.local|g" /home/$MY_USERNAME/Desktop/cryptpad.desktop
+        fi
         if grep -q "Offline" /home/$MY_USERNAME/Desktop/cryptpad.desktop; then
             sed -i 's|Name=.*|Name=CryptPad|g' /home/$MY_USERNAME/Desktop/cryptpad.desktop
         fi