[Inkscape-translator] Website: Update at 'The next Release'

Hi website translators,

we've updated the 'The next Release' page, to reflect the fact that development is continuing ;)

https://inkscape.org/en/develop/next-release/ (you will need to remove all 'class="done"' in the source html to get rid of the green dots)

Thanks for all your help!

Regards, Maren