Inconsistent filter naming

[esamattis]

The source uses both wpgraphql_acf_ and graphql_acf_ prefixes in apply_filters(). I think we should have only one naming convention.

I'd prefer graphql_acf_ as it is what the core uses.

[jasonbahl]

Good call. That's fair for sure.

[jasonbahl]

This has been resolved in the new version of WPGraphQL for ACF over here: ttps://github.com/wp-graphql/wpgraphql-acf

see: wp-graphql/wpgraphql-acf#67

This version of WPGraphQL for ACF will be archived in the not-too-distant future in favor of the new one.