Nicotine+ 3.3.9

[!CAUTION] File transfers never start in this release. Use 3.3.10 instead.

• Fixed a crash when rescanning shared files in some cases
• Fixed column widths not being remembered for certain columns
• Improved readability of long file paths in File Properties dialog
• Fixed minor inconsistencies in the GUI

Issues closed on GitHub

• Diacritics starting names are in wrong order (at the end of the list) - languages drop-down menu (#3295)
• Setting the width of the columns is not remembered (#3296)
• Can't boot after deleting app and reinstalling it (#3308)