fix: update MaxFrequency error message to reflect number of seconds

[J0]

What kind of change does this PR introduce?

Currently we use a constant value on number of seconds left before a developer can send a follow up email confirmation. This can prove confusing if developer has a custom setting for MaxFrequency on Sms or SMTP

Considered pushing the check into validateFrequencyLimit in sendConfirmationMail or similar. Unfortunately, that would obscure the existing error message and return an internalServerError instead which might be harder to interpret for a dev

[coveralls]

Pull Request Test Coverage Report for Build 9089975509

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 9 of 25 (36.0%) changed or added relevant lines in 9 files are covered.
• 475 unchanged lines in 15 files lost coverage.
• Overall coverage decreased (-0.1%) to 65.463%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/api/identity.go	1	2	50.0%
internal/api/magic_link.go	0	1	0.0%
internal/api/user.go	0	1	0.0%
internal/api/reauthenticate.go	0	2	0.0%
internal/api/signup.go	0	5	0.0%
internal/api/resend.go	0	6	0.0%

Files with Coverage Reduction	New Missed Lines	%
internal/api/resend.go	1	50.38%
internal/api/logout.go	1	83.78%
internal/mailer/mailer.go	4	72.34%
internal/storage/dial.go	7	68.03%
internal/api/api.go	11	86.52%
internal/api/phone.go	11	81.31%
internal/hooks/auth_hooks.go	15	54.55%
internal/models/errors.go	15	50.0%
internal/api/provider/azure.go	16	69.89%
internal/api/middleware.go	21	84.17%

Totals
Change from base Build 8693432544:	-0.1%
Covered Lines:	8372
Relevant Lines:	12789

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💛 - Coveralls