fix: incorrect cjs path in package.json (#685)

Addresses https://sendbird.atlassian.net/browse/CLNP-442

Just fixed the incorrect path for common js module in pacakge.json.

Author: AhyoungRyu

package.json

@@ -19,7 +19,7 @@
     "customer support",
     "API"
   ],
-  "main": "dist/index.js",
+  "main": "dist/cjs/index.js",
   "style": "dist/index.css",
   "typings": "dist/index.d.ts",
   "module": "dist/index.js",

scripts/package.template.json

@@ -19,7 +19,7 @@
     "API"
   ],
   "type": "module",
-  "main": "index.js",
+  "main": "dist/cjs/index.js",
   "style": "dist/index.css",
   "typings": "index.d.ts",
   "module": "index.js",