fix: update exports entry with type mappings for ESM consumers

[himanshusinghs]

Note: This PR is a copy of #89 which we reverted because it was incorrectly marked as chore. With this PR, we are proposing the same changes with correct categorisation (fix) for semantic release.

Description

This PR proposes adding explicit type mappings in the exports entry of the package.json so that library consumers don't have to manually map types in their tsconfig, an example here.

What is changing?

We're adding an entry for types in the exports entry in package.json

Is there new documentation needed for these changes?

No

What is the motivation for this change?

We'd like to avoid doing explicit type mappings likes this.

Release Highlight

package.json now specifies the correct types for ESM users

Before this release, the type exports from the package.json did not properly export a typing file for ESM bundles. This required users to explicitly import the correct types in their Typescript or bundler configurations.

Now, the package.json correctly specifies a types file for the ESM bundle of this library.

Double check the following

• Ran npm run lint script
• Self-review completed using the steps outlined here
• PR title follows the correct format: type(NODE-xxxx)[!]: description
  • Example: feat(NODE-1234)!: rewriting everything in coffeescript
• Changes are covered by tests
• New TODOs have a related JIRA ticket