jitsi meet index.html add css version

# Use the jitsi-meet package version as the version for app.bundle.js
sed -i.bak  -e "s/app.bundle.min.js?v=[[:digit:]]*/app.bundle.min.js?v=$VERSIONMIN/" index.html
sed -i.bak  -e "s/lib-jitsi-meet.min.js?v=[[:digit:]]*/lib-jitsi-meet.min.js?v=$VERSIONMIN/" index.html
sed -i.bak  -e "s/all.css/all.css?v=$VERSIONMIN/" index.html
sed -i.bak  -e "s/interface_config.js?v=[[:digit:]]*/interface_config.js?v=$VERSIONMIN/" index.html