- fixed target_type for the poNumber field of Quote entity
- added package-level ORM indexer tests for all searchable entities and fields
- renamed "customer" to "customerAssociation" in search config for Opportunity (probably remnants from older versions that were later changed)
- removed "dataChannel/dataChannelId" from Opportunity and Lead search configs (relation may have been removed in old versions, ConvertDataChannelToExtend migration has no equivalent in the current installer)
- inventory_status should be a searchable field of Product, not Brand
- ContentWidget has no "template" field anymore (it was replaced with "layout" a long time ago, but it probably doesn't need to be searchable anyway)
- Page has no defaultSlug field or accessor