Reduce security & spaces plugin bundle sizes #64192
Description
The current bundle sizes:
security.plugin.js - 2.7Mb
spaces.plugin.js - 1.8Mb
We can reduce the size by adding lazy loading for management section components.
Kibana loading performance in one of the critical problems to address in the current release. Let me know if you manage to squeeze the issue in the remaining time until FF. Otherwise, I can help to implement it.
Useful links https://github.com/elastic/kibana/blob/master/src/core/MIGRATION.md#how-to-understand-how-big-the-bundle-size-of-my-plugin-is