Folder generated from qtbridge file might contain invalid characters

Originated from https://bugreports.qt.io/browse/QDS-13208

Currently, folder name is based on the .qtbridge archive. Archive name might contain prohibited symbols (such as spaces) and user can rename the archive after the export is complete. Probably, folder name needs to follow the same rules as regular Component name.

I believe that basing generated folder name on an archive name is a good behavior allowing user to export and import the same design project into different folders and manage them separately. Also, it's a behavior that we have for at least two years, so users are used to it.