BUGFIX: escape quotechar when escapechar is not None (even if quoting=csv.QUOTE_NONE)

[KevsterAmp]

• closes BUG: to_csv() quotechar/escapechar behavior differs from csv module #61407 (Replace xxxx with the GitHub issue number)
• Tests added and passed if fixing a bug or adding a new feature
• All code checks passed.
• Added type annotations to new arguments/methods/functions.
• Added an entry in the latest doc/source/whatsnew/vX.X.X.rst file if fixing a bug or adding a new feature.

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Found the issue on CSVFormatter._initialize_quotechar, wherein it only returns quotechar when self.quoting is not csvlib.QUOTE_NONE:

if self.quoting != csvlib.QUOTE_NONE:
    # prevents crash in _csv
    return quotechar
return None

to follow the same behavior of csv.writer (escape when escapechar is not None), I improved the if function to return quotechar when self.escapechar is not None

in the CSVFormatter.__init__, moved the initialization of self.escapechar higher than self.quotechar since the initial solution was returning errors from calling self.escapechar before its initialization

initially marked as draft to let the CIs run & check if there are tests affected by this change

[KevsterAmp]

CI errors looks unrelated

[mroeschke]

/home/runner/work/pandas/pandas/doc/source/whatsnew/v3.0.0.rst:809: WARNING: Bullet list ends without a blank line; unexpected unindent. [docutils]

[mroeschke]

Thanks @KevsterAmp