feat: Use CJS build for SDK (#10247)

The UMD build was causing issues for a few customers, this PR reverts to
using CJS like used in Webpack 4 before the vite migration

---------

Co-authored-by: Pranav <pranavrajs@gmail.com>
Co-authored-by: Pranav <pranav@chatwoot.com>

vite.config.ts

@@ -66,7 +66,7 @@ export default defineConfig({
     lib: isLibraryMode
       ? {
           entry: path.resolve(__dirname, './app/javascript/entrypoints/sdk.js'),
-          formats: ['umd'], // UMD format for single file
+          formats: ['cjs'], // CJS format for single file
           name: 'sdk',
         }
       : undefined,