Show recent project files that start with "." / hidden files

Prepend '_' to recent project filenames that start with "." so they are not hidden

Change project title to project caption term (consistency)

Destination file requester is now of Save type for New / Import project assistants
This ensures that extension is added to the filename if needed and the file dialog is "Save" dialog so it checks for overwriting

Improve destination file requester for New and Import project assistants: use Documents location if there are no recent dirs known yet
Also create the Documents dir if it's missing.

Improve destination file requester for New and Import project assistants: better preserve path while updating filename based on project caption

FIXED-IN:3.2.0