feat: Allow receiving an array of sites as CORS ORIGIN

[LautaroPetaccio]

This PR allows receiving as query parameter, an array of sites to be used as the CORS_ORIGIN environment variable.

[coveralls]

Pull Request Test Coverage Report for Build 8677062401

Details

• 5 of 9 (55.56%) changed or added relevant lines in 2 files are covered.
• 39 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.2%) to 70.216%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/server.ts	3	7	42.86%

Files with Coverage Reduction	New Missed Lines	%
src/Item/Item.service.ts	17	89.52%
src/Item/Item.model.ts	22	12.5%

Totals
Change from base Build 8567389305:	-0.2%
Covered Lines:	2938
Relevant Lines:	4034

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💛 - Coveralls