allow graphql arguments to be passed onto proper nested entites, rather than top level

[kjessec]

If an indexer output is inlined by another entity, the graphql arguments are merged to the top level. This behaviour:

• reduces granularity of graphql queries; filters on nested/relational entities cannot work properly
• blocks deep level KVIndex generation as root level kvIndexEntry will always take precedence

[kevinhankpark]

Mantle list resolver optimize