[REQUEST][ResponseOps][Reporting] Scheduled Exports External Docs

[ymao1]

Scope
Add user docs to guide the user in how to schedule/manage recurring reports

User flows

• Users can schedule a recurring export from Dashboard, Discover and Lens from the "Schedule Export" option
• Users can configure a recurring export
• Users can share the recurring export by email if they have the feature sub-privilege
• Users can view their already configured export schedules from Stack management - > reporting -> schedules tab
• Users can view the configuration of an existing schedule
• Users can disable a recurring export schedule

References
GH issues: https://github.com/elastic/kibana-team/issues/1621
Wireframe: https://www.figma.com/design/M0vlIw7vbEpDsrPhd7npYe/Scheduled-Reports--%3E--673?node-id=1-200&t=kkg2XcqqrIxBlVWC-1

[elasticmachine]

Pinging @elastic/response-ops (Team:ResponseOps)

[mikecote]

@lcawl I'm not sure if this is something you can help us with when the time comes? We're working on a new scheduled reports feature and we'll need to document the functionality.