Ensure that matrix domain name is correct after upgrades

src/freedombone-app-riot

@@ -202,6 +202,11 @@ function upgrade_riot {
     read_config_param ONION_ONLY
     riot_set_default_homeserver
 
+    read_config_param MATRIX_DOMAIN_NAME
+    riot_config_file="/var/www/${RIOT_DOMAIN_NAME}/htdocs/config.${RIOT_DOMAIN_NAME}.json"
+    sed -i "s|\"default_hs_url\":.*|\"default_hs_url\": \"https://${MATRIX_DOMAIN_NAME}\",|g" "$riot_config_file"
+    sed -i "s|\"default_is_url\":.*|\"default_is_url\": \"https://${MATRIX_DOMAIN_NAME}\",|g" "$riot_config_file"
+
     systemctl restart nginx
 }