refactor: move sla pages to a dedicated module and follow kebab case

[tbouffard]

Also fix typo and rendering.

Notes

Covers bonitasoft/bonita-documentation-site#589

This is currently not listed in the "Contribution Summary", but redirects for the moved pages have been setup and should be tested:

• https://bonitasoft-bonita-cloud-doc-deploy-pr-65.surge.sh/cloud/latest/Service_Level_Agreement_Service_Availability
• https://bonitasoft-bonita-cloud-doc-deploy-pr-65.surge.sh/cloud/latest/Service_Level_Agreement_Disaster_recovery
• https://bonitasoft-bonita-cloud-doc-deploy-pr-65.surge.sh/cloud/latest/Service_Level_Agreement_High_Performance
• https://bonitasoft-bonita-cloud-doc-deploy-pr-65.surge.sh/cloud/latest/Service_Level_Agreement_Data_Management

[github-actions]

📝 Contribution Summary

To merge this Pull Request, you need to check your updates with the following URL.

🔗 Updated pages

Note

The following pages were updated, please ensure that the display is correct:

• sla/data-management
• sla/disaster-recovery
• sla/high-performance
• sla/maintenance-and-upgrades
• sla/service-availability

🔍 Check redirects

Warning

At least one page has been renamed, moved or deleted in the Pull Request. Make sure you add aliases and check that the following links redirect to the right place:

• Service_Level_Agreement_Maintenance_and_upgrades
• Service_Level_Agreement_Data_Management
• Service_Level_Agreement_Disaster_recovery
• Service_Level_Agreement_High_Performance
• Service_Level_Agreement_Service_Availability

[bonita-ci]

🎊 PR Preview 74e74e4 has been successfully built and deployed to https://bonitasoft-bonita-cloud-doc-deploy-pr-65.surge.sh

🕐 Build time: 0.009s

_{🤖 By surge-preview}