Agent event view doesn't load on the first attempt

[spothound]

Wazuh	Splunk	Rev
4.0	8.1.1	68

Tested on Arch Linux with Firefox.

Description Trying to access to the agent's event view, the page returns no information. If we reload the page or change the tab, the info is correctly loaded.

Steps to reproduce

1. Go to agents view
2. Click on the "open discover panel for this agent" button
3. Wait. The agent info doesn't appear.
4. Reload the page or change the tab. The info appears.

https://user-images.githubusercontent.com/15269938/111757030-2c54de80-889b-11eb-9cbf-0e9dcea9bfa7.mp4