Draft: Fix overlong line, by moving half of the line into the headline

This is a possible workaround for bug #1102253 "Message is truncated in graphical installer when erasing storage for use with encrypted volume".

The real issue is within the graphical installer, since it does not break the line, while the text-based installer does.

However I am unable to fix this in the graphical installer, and for the case that noone steps up to do the fix, we would probably go with this workaround?

I have tested this, and it works as intended.

I mark this as draft, since I don't want it to be merged before the release of trixie, since it involves translation efforts, and I don't see the need for bumping the amount of fully translated languages to zero at this time, for this issue.