Refactor JwtService to expose issuer/secret

[iamacook]

Summary

The JwtService currently signs, verifies and decodes tokens according to our environment variables and there is no way of overriding these values.

As the Firebase datasource requires a JWT token signed with a custom issuer/secret, this refactors the aforementioned service to facilitate it.

Changes

• Expose the option to specify issuer/secret to JwtClient, otherwise defaulting to env. vars. in JwtService
• Remove options that override claims on token, instead opting for their spec, e.g. iat, nbf, exp (instead of issuedAt, notBefore, expiresIn)
• Accept/return dates for the all spec. specific dateclaims
• Use JwtService in FirebaseCloudMessagingApiService instead of jsonwebtoken
• Update tests accordingly

[coveralls]

Pull Request Test Coverage Report for Build 9991392254

Details

• 3 of 16 (18.75%) changed or added relevant lines in 6 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.1%) to 48.141%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/datasources/jwt/jwt-claims.entity.ts	0	1	0.0%
src/domain/auth/auth.repository.ts	0	1	0.0%
src/domain/common/utils/time.ts	1	2	50.0%
src/routes/auth/auth.controller.ts	0	1	0.0%
src/datasources/jwt/jwt.module.ts	1	4	25.0%
src/datasources/jwt/jwt.service.ts	1	7	14.29%

Totals
Change from base Build 9991351602:	-0.1%
Covered Lines:	4282
Relevant Lines:	7149

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💛 - Coveralls

[hectorgomezv]

👏🏻👏🏻👏🏻

The base branch was changed.