Help Wanted: Document New Client Configuration Property

[cwarnermm]

Context

mattermost/mattermost-mobile#8220 introduces a new client configuration property that determines whether the mobile app should use the default external browser to perform SSO Authentication instead of the internal one.

Documentation Ask

Source file: configure/site-configuration-settings.rst

Within the Customization section, add the new configuration setting (and its associated search metadata located directly above a section title) as a new section on this page.

Position the new configuration setting immediately following the App custom URL schemes section, and format the details of the section modelled after the report a problem configuration setting.

Include the following configuration setting details:

• Section title: Mobile external browser
• Available only for self-hosted deployments
• Description: Configures the mobile app to perform SSO Authentication using the external default browser.
• String input.
• System Config path: N/A
• config.json = NativeAppSettings -> MobileExternalBrowser
• Environment variable = MM_NATIVEAPPSETTINGS_MOBILEEXTERNALBROWSER

QA Validation Criteria

In a generated docs preview:

• Searching for the new configuration setting returns the correct details.
• Visiting the docs page directly returns details about the new configuration setting.

[Rutam21]

@cwarnermm I would like to work on this. Please assign this to me. Thanks.

[cwarnermm]

Thanks, @Rutam21!!