txt2book

• Fixed empty docx importing

• Fixed a Telegraph bug when there's no author

1. Support for importing .docx documents (WIP & unstable).
2. maximum_file_size in txt2book.toml to limit the maximum size of imported file/work.

Fixed config.toml collision inside jar

1. Added the new line character to allowed.
2. Some Telegraph fixes.
3. Update logging.

• Transferred the information about the letters to the config.
• Added config versioning.
• Fixed the error if there's no config folder.
• Fixed the 1.21.1 support.

• Added /txt2book resetCache command so you can now clear the cache of the books (permission: ru.pyxiion.txt2book.resetCache).
• Ignoring more types of whitespaces in the beginning of the lines (nonbreaking whitespace).
• A fix in the text parsing. Now words can include '-', so it breaks them better.
• Removing unused imports in the code.

Fixed the ficbook stories with one page. Fixed the line breaks.