Auth/refactor reset auto signin wrapper

[sirenye]

Description of changes

Refactored the resetAutoSignIn() function in autoSignIn.ts by introducing two named wrapper functions:

resetAutoSignInCompletely() — triggers the reset and reset callback

resetAutoSignInStoreOnly() — resets the store only without invoking the callback

This change improves readability and intent clarity when resetting auto sign-in state throughout the authentication flow.

Also fixed lint errors by removing void return values and formatting code to satisfy Prettier.

Issue #, if available

#14405

Description of how you validated changes

Ran yarn lint --fix to resolve formatting issues

Confirmed all tests pass via:
yarn test
and
yarn test --scope @aws-amplify/auth

Confirmed all license and compliance checks pass

Checklist

• PR description included
• yarn test passes
• Unit Tests are not changed (behavior unchanged, internal refactor)
• No documentation changes required

Checklist for repo maintainers

• Verify E2E tests for existing workflows are working as expected or add E2E tests for newly added workflows
• New source file paths included in this PR have been added to CODEOWNERS, if appropriate

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[ahmedhamouda78]

Hello @sirenye, we have decided to keep the current implementation as it is, since this is an internal function and adding wrapper functions will introduce maintenance overhead where we will need to modify/add the wrapper functions anytime we change the parameters of resetAutoSignIn