Changelog:

• Check that a newly written month file is valid before deleting the old month file.
• Rename "autostart" file. Please reenable autostart option in preferences if you want RedNotebook to run on system startup.
• Fix Python crash on program start
• Prevent save failures on network and cloud drives
• Add script for importing entries

Signed-off-by: Algent Albrahimi <algent@protonmail.com>

• Run rednotebook. Make some notes, insert some pictures and add some files to the note.
• Export notes in TXT, HTML and TEX formats.
• Check spellchecker if working as expected.