Increase buffer size to 1024 bytes

This increases the buffer size to 1024, as otherwise the payload will be
truncated if it exceeds 128 bytes, which causing issues when a consumer
attempts to parse messages, as it'll very likely be invalid json.

Author: aud

src/WebSocketClient.h

@@ -86,7 +86,7 @@ class WebSocketClient : public HttpClient
 private:
     bool iTxStarted;
     uint8_t iTxMessageType;
-    uint8_t iTxBuffer[128];
+    uint8_t iTxBuffer[1024];
     uint64_t iTxSize;
 
     uint8_t iRxOpCode;