removed nextJS page from 3.x and cleaned up links

Author: rsill-neo4j

modules/ROOT/content-nav.adoc

@@ -86,7 +86,6 @@
 ** xref:driver-configuration.adoc[]
 ** xref:guides/index.adoc[]
 *** xref:guides/apollo-federation.adoc[]
-*** xref:guides/frameworks/nextjs.adoc[]
 *** xref:guides/migration-guide/index.adoc[]
 **** xref:guides/migration-guide/server.adoc[]
 **** xref:guides/migration-guide/type-definitions.adoc[]

modules/ROOT/pages/guides/frameworks/nextjs.adoc

@@ -3,10 +3,11 @@
 
 Here you can find a selection of guides to help you work with the Neo4j GraphQL Library.
 
-== Usage with frameworks
-* xref::guides/frameworks/nextjs.adoc[Usage with Next.js] - guide on how to use `@neo4j/graphql` with Next.js.
+== Apollo Federation
+* xref::guides/apollo-federation.adoc[Apollo Federation - beta] - guide on how to compose subgraphs created with the Neo4j GraphQL Library into a supergraph using Apollo Federation.
 
 == Migration guides
+
 * xref::guides/migration-guide/index.adoc[Migration Guide] - migrating from `neo4j-graphql-js` to `@neo4j/graphql`
 * xref::guides/v2-migration/index.adoc[2.0.0 Migration] - migrating from version 1.* of `@neo4j/graphql` to version 2.* for relationship property support
 * xref::guides/v3-migration/index.adoc[3.0.0 Migration] - migrating from version 2.* of `@neo4j/graphql` to version 3.*