Extra ui fields

src/freedombone-app-searx

     echo '    http_protocol_version : "1.1"  # 1.0 and 1.1 are supported' >> $settings_file
     echo '' >> $settings_file
     echo 'ui:' >> $settings_file
+    echo '    static_path : "" # Custom static path - leave it blank if you didnt change' >> $settings_file
+    echo '    templates_path : "" # Custom templates path - leave it blank if you didnt change' >> $settings_file
     echo '    themes_path : "" # Custom ui themes path' >> $settings_file
     echo '    default_theme : courgette # ui theme' >> $settings_file
     echo '    default_locale : "" # Default interface locale - leave blank to detect from browser information or use codes from the 'locales' config section' >> $settings_file