chore: add a locales stub for correct vite module resolution

nperez0111 · nperez0111 · commit 31b7cedbee50 · 2025-03-27T13:56:39.000+01:00
When resolving `@blocknote/core/locales` locally, vite can pick up on this file within the `src` directory and use that for the locales export.
This should be the same as what is exported in that sub-package anyway
diff --git a/packages/core/src/locales.ts b/packages/core/src/locales.ts
@@ -0,0 +1 @@
+export * from "./i18n/index.js";
