Last Minute translations for OCPN 4.6

[bdbcat]

Folks...

I have updated the .pot files in crowdin.

An important change was made to the initial OCPN "welcome" message.
The message is now formatted as HTML, so that line breaks for layout are handled automatically, whatever language is selected.

I attach the English version for reference.

Please update your translations, so that we may proceed to the final Release Candidate stage.

Thanks
Dave

[Gilletarom]

Done for OCPN core.