Docs: Add Microsoft Fabric database connector

[ayush-shah]

This was generated by AI during triage.

Finding

OpenMetadata includes a Microsoft Fabric database connector, but docs-om does not have a v1.13 connector page for it.

Evidence

• Product code: ingestion/src/metadata/ingestion/source/database/microsoftfabric/service_spec.py and sibling source files exist in OpenMetadata.
• Test connection data exists at openmetadata-service/src/main/resources/json/data/testConnections/database/microsoftfabric.json.
• Docs check: no v1.13.x-SNAPSHOT/connectors/database/microsoftfabric page exists in docs-om.

Acceptance criteria

• Add the Microsoft Fabric database connector overview page under v1.13.x-SNAPSHOT/connectors/database/microsoftfabric/.
• Add YAML/UI ingestion guidance and required connection settings.
• Add the connector to v1.13 navigation and connector listings.
• Run mint broken-links successfully.