feat(core): init graphql.tada (#662)

Author: deini

.changeset/fair-cheetahs-relate.md

@@ -0,0 +1,5 @@
+---
+"@bigcommerce/catalyst-core": minor
+---
+
+export a graphql() powered by gql.tada

apps/core/client/graphql.ts

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+import { initGraphQLTada } from 'gql.tada';
+
+import type { introspection } from '~/graphql-env';
+
+export const graphql = initGraphQLTada<{
+  introspection: introspection;
+  scalars: {
+    DateTime: string;
+    Long: number;
+    BigDecimal: number;
+  };
+  disableMasking: true;
+}>();
+
+export type { FragmentOf, ResultOf, VariablesOf } from 'gql.tada';
+export { readFragment } from 'gql.tada';