fix: support expired preview token and repository not found API error

[angeloashmore]

Types of changes

• Chore (a non-breaking change which is related to package maintenance)
• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

This PR adds support for two errors in response to the Prismic Document API.

• PreviewTokenExpiredError: Thrown when a query's preview token (used as a ref) is expired. This error extends from ForbiddenError for consistency with the other ref-related errors.
• RepositoryNotFoundError: Thrown when a Prismic repository does not exist. This error was previously thrown as NotFoundError. Thus, the new error extends from NotFoundError to ensure this change is non-breaking.

The new errors will extend from PrismicError in a future major version for better semantics.

Checklist:

• My change requires an update to the official documentation.
• All TSDoc comments are up-to-date and new ones have been added where necessary.
• All new and existing tests are passing.

🐤

[codecov-commenter]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (163d03e) 99.97% compared to head (f719e31) 99.97%.

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #328   +/-   ##
=======================================
  Coverage   99.97%   99.97%           
=======================================
  Files          59       61    +2     
  Lines        6852     6885   +33     
  Branches      376      381    +5     
=======================================
+ Hits         6850     6883   +33     
  Misses          2        2           

Files	Coverage Δ
src/createClient.ts	100.00% <100.00%> (ø)
src/errors/PreviewTokenExpired.ts	100.00% <100.00%> (ø)
src/errors/RepositoryNotFoundError.ts	100.00% <100.00%> (ø)
src/index.ts	100.00% <100.00%> (ø)

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[lihbr]

LGTM! This is really comprehensive 🚀