Add Loading Skeletons for Task Lists

[its-me-abhishek]

Is your feature request related to a problem? Please describe.
When the task list is loading, users see a blank screen for a short time, which can be confusing or make the app feel slow.

Describe the solution you'd like
Add loading skeletons (shimmer placeholders) for task rows while data is being fetched from the backend. This improves perceived performance and gives users immediate feedback.

Describe alternatives you've considered

• Spinner or generic loading indicator: does not indicate how much data is coming or the structure of the list.

Additional context
Use Suspense from React

[Neeraj-gagat]

@its-me-abhishek hello abhishek in past i have worked on making loading skeletons. can you assign this issue to me i would like to work on it.

[its-me-abhishek]

sure