Update manage-alerts.md

[msbemba]

Updated the navigation to alert supression

[msbemba]

Issue#https://github.com/MicrosoftDocs/microsoft-365-docs/issues/9771

[msbemba]

@JohanFreelancer9 Please copy review

[opbld31]

Docs Build status updates of commit f983b7e:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
microsoft-365/security/defender-endpoint/manage-alerts.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

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[yogkumgit]

@mjcaparas Please merge this PR. Thanks

[opbld31]

Learn Build status updates of commit 1af6718:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
microsoft-365/security/defender-endpoint/manage-alerts.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel