remove white space from value before parsing

[vin0110]

The original code was producing the following error (truncated):

    parsed_value = self.format.parse_value(self.text)
  File "/Users/vin/.../venv/lib/python3.9/site-packages/ixbrlparse/components/formats.py", line 97, in parse_
value
    return w2n.word_to_num(value)
  File "/Users/vin/.../venv/lib/python3.9/site-packages/word2number/w2n.py", line 154, in word_to_num
    raise ValueError("No valid number words found! Please enter a valid number word (eg. two million twenty three tho
usand and forty nine)")
ValueError: No valid number words found! Please enter a valid number word (eg. two million twenty three thousand and
forty nine)

The value being parsed had whitespace around the word none.

[drkane]

Looks great thanks - I've added a test to cover the case you've described. (apologies for the multiple additional commits - I'm having some trouble testing on python 3.13 so I've removed those tests so I can merge).