1. De-duplicate the images occur multiple times in the note;
2. Refresh the read mode and edit mode preview after the directory path
change;
3. Update init images and inserted images after the directory path
change;
- When adding attachments, if the name conflicts, we add sequence after
the base name. "abc.tar.gz" to "abc_001.tar.gz".
- When handling notes and folders, if the name conflicts, we add
sequence after the complete base name. "abc.5.9.1.md" to
"abc.5.9.1_001.md".
- Use *.html suffix for rich text file;
- For unknown DocType, open it using system's default app;
- Add "Open Via External Program" item in context menu of VFileList;
Support attachments to internal note file.
- Add/Delete/Clear/Sort;
- Support custom attachment folder for each notebook (read-only);
- Support renaming attachment;
