feat: trimming white spaces in answers

[SamuelLarkin]

fixes: #324

New unittests:

python \
  -m unittest \
    everyvoice.tests.test_wizard.WizardTest.test_leading_white_space_in_wav_dir \
    everyvoice.tests.test_wizard.WizardTest.test_leading_white_space_in_filelist \
    everyvoice.tests.test_wizard.WizardTest.test_leading_white_space_in_outpath

[MENGZHEGENG]

Thanks Samuel! It looks good to me :)

[github-actions]

CLI load time: 0:00.31
Pull Request HEAD: b498dc672f0ec6399c3b1d28279a7d6675f94821
Imports that take more than 0.1 s:
import time: self [us] | cumulative | imported package

[SamuelLarkin]

questionary is build on top of python-prompt-toolkit which has the following page on how to perfrom Unit testing as suggested by Documentation: add documentation on how to test an application using questionary in the issue
tmbo/questionary#355.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.46%. Comparing base (71652a4) to head (b498dc6).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #344      +/-   ##
==========================================
+ Coverage   71.23%   71.46%   +0.23%     
==========================================
  Files          39       39              
  Lines        2527     2541      +14     
  Branches      390      390              
==========================================
+ Hits         1800     1816      +16     
+ Misses        657      653       -4     
- Partials       70       72       +2     

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[MENGZHEGENG]

Great! Thanks Sam!