Performance enhancements, refactoring and bug fixes

[9sneha-n]

📌 References

• Issue: Closes https://app.clickup.com/t/8695mq015, #8695mq015

📝 Implementation

• Risk assessment history as data visualiser charts
• Fetch all option sets on app load to improve event tracker page performance.
• Fetch all, risk assessors, incident manager team members in app load to improve event tracker page performance.
• Remove unused areas affected code to avoid unwanted api calls for performance improvement.

📹 Screenshots/Screen capture

🔥 Notes to the tester

Note : Both before and after are tested on slower network
App link: https://metadata.eyeseetea.com/rsl-zebra/api/apps/ZEBRA/index.html#/
App load time Before: 7.55 s
Event tracker load time Before: 15.45 s

Test App link : https://metadata.eyeseetea.com/rsl-zebra/api/apps/ZEBRA-PERFTEST/index.html#/
App load time After: 8.15 s (Increased due to fetch on app load, but will improve in next PR with cases&deaths fix)
Event tracker load time After: 6 s

[anagperal]

@9sneha-n great refactor!! 🎉