Includes info about Location header when updating state of all messages in mail folder

[MartinM85]

Important

Required for API changes:

• [] Link to API.md file: ADD LINK HERE
• [] Link to PR for public-facing schema changes (schema-Prod-beta/v1.0.csdl): ADD LINK HERE

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Add other supporting information, such as a description of the PR changes:

The PR adds info about the Location response header when updating state of all messages in mail folder.

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[learn-build-service-prod]

Learn Build status updates of commit af71d64:

✅ Validation status: passed

File	Status	Preview URL	Details
api-reference/beta/api/mailfolder-updateallmessagesreadstate.md	✅Succeeded

For more details, please refer to the build report.

[FaithOmbongi]

Thank you @MartinM85 for your contribution.