Add 1:1 call support for Safari to browser-support.md

[dariomws]

Closes https://github.com/MicrosoftDocs/OfficeDocs-SkypeForBusiness/issues/9184.

@dstrome, could you confirm if 1:1 calling is supported on the 14 or 15 Safari version? Thanks.

[opbld30]

Docs Build status updates of commit 3147dbe:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
Teams/includes/browser-support.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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[scanum]

@dstrome PR has been copyedited and is ready for final review, could you please check and merge? Thanks!

[dariomws]

@dstrome PR has been copyedited and is ready for final review, could you please check and merge? Thanks!

[scanum]

@dstrome PR has been copyedited and is ready for final review, could you please check and merge? Thanks!

[learn-build-service-prod[bot]]

Learn Build status updates of commit 3147dbe:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
Teams/includes/browser-support.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

For any questions, please:

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