fix: clean up unnecessary TypeScript suppression directives

- Remove @ts-expect-error directives that are unused locally
- Clean up .d.ts files that were not needed
- Build passes locally, testing if CI environment differs

Author: lesya7

lwrjs-api.d.ts

@@ -6,5 +6,5 @@
     "skipLibCheck": true,
     "baseUrl": "."
   },
-  "include": ["./src/**/*.ts", "./src/**/*.d.ts"]
+  "include": ["./src/**/*.ts"]
 }