optimize copying data chunks into a single array (#696)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Performance Improvements**
- Enhanced media chunk processing for better efficiency and reduced
memory usage when combining media data into a single array.

- **Bug Fixes**
- Resolved potential performance issues related to the handling of
multiple intermediate arrays.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/sdk/src/client.ts

@@ -1484,9 +1484,14 @@ export class Client
         if (!mediaInfo) {
             return undefined
         }
-        const data = mediaInfo.chunks.reduce((acc, chunk) => {
-            return new Uint8Array([...acc, ...chunk])
-        }, new Uint8Array())
+        const data = new Uint8Array(
+            mediaInfo.chunks.reduce((totalLength, chunk) => totalLength + chunk.length, 0),
+        )
+        let offset = 0
+        mediaInfo.chunks.forEach((chunk) => {
+            data.set(chunk, offset)
+            offset += chunk.length
+        })
 
         return decryptAESGCM(data, secretKey, iv)
     }