Don't show big loading icons in the panels when a dashboard reloads

[ankitnayan]

• [x] #2073
• [x] #2074
• [ ] #2075

[ankitnayan]

https://github.com/SigNoz/signoz/issues/1865

[techchintan]

@ankitnayan @palashgdev PR is merged with smoother transition so can you guys confirm #2075 issue? is it resolved or still anything pending?

[palashgdev]

I don't think it is actionable right now ... will revisit if any more insights is needed for now we close