Use search instead of findMany in relation pickers (#7798)

First step of #https://github.com/twentyhq/twenty/issues/3298.
Here we update the search endpoint to allow for a filter argument, which
we currently use in the relation pickers to restrict or exclude ids from
search.
In a future PR we will try to simplify the search logic in the FE

packages/twenty-server/src/engine/api/graphql/workspace-schema-builder/utils/get-resolver-args.util.ts

@@ -147,6 +147,10 @@ export const getResolverArgs = (
           type: GraphQLInt,
           isNullable: true,
         },
+        filter: {
+          kind: InputTypeDefinitionKind.Filter,
+          isNullable: true,
+        },
       };
     default:
       throw new Error(`Unknown resolver type: ${type}`);