Update crowdin.yml to extend translation file suffix with locale

[bubblobill]

Identify the Bug or Feature request

closes #4344

Description of the Change

Currently Crowdin returns one file for each language using a a two letter code; e.g. _jp, _es, _en
This falls down when there are multiple locale translations that use the same code.
Changing the crowdin.yml export mask from:
translation: /%original_path%/%file_name%_%two_letters_code%.%file_extension%
to:
translation: /%original_path%/%file_name%_%locale_with_underscore%.%file_extension%
should resolve the issue.

Possible Drawbacks

none foreseeable if it works as expected, otherwise, tragic mayhem.

Documentation Notes

Translation file import fix

Release Notes

Translation file import fix

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This change is 

[kwvanderlinde]

Do we need to rename our existing i18n files with this change?

[bubblobill]

No. Currently the translated files are written by Crowdin as you see them. At present the en_au and en_gb files are not written because there are three en translations and we only get the one. This should result in the additional translations coming home to daddy.
On Crowdin most language files have no locale.