feat: support nested criteria

feat: added --dm option

refactor: comments and variable names

fix(repair_url_pair): comma is replaced by underscore

fix(repair_url_pair): ampersand in url replaced by "et"

fix: empty directory titles don't have the hash suffix anymore

fix(weights & crit): weights work & crit with links, too

removed __pycache__

refactor: refactored with 'black'

feat: notion-unzip -> unzip-notion & --clean* options

fix(tags/critères): quoting tag part of with using urllib

feat(tags/critères): added section about tags/critères in every DM main page

feat(overwrite): ability to overwrite hugo.toml file using --overwrite

feat(weight): adding weights

small fixes and --verbose & --keep-tmp-folder options