bug/en-dash-not-cleaned

[carminoplata]

Describe the bug
When you apply clean_bullets, the dash encoded as \u2013 (EN Dash) '–' is not removed. You have to add additional step clean_dashes in order to remove this kind of dashes which is still wrong since clean_dashes removes all EN Dash found into text field.

To Reproduce
Try to parse a pdf file where there is a list whose bullets point are identified by '–'

Expected behavior
The strings that starts with en-dash as bullets must be cleaned after called clean_bullets