[FEATURE] Get the number of data source for empty state for aggregated view

[yujin-emma]

Is your feature request related to a problem?

What solution would you like?
Provide the number of data source for empty state, just give it 0 since it is empty state
What alternatives have you considered?
A clear and concise description of any alternative solutions or features you've considered.

Do you have any additional context?
Add any other context or screenshots about the feature request here.

[yujin-emma]

Since it is empty state, we can pass {0} as the number of the data source.

[yujin-emma]

Please also add one . for the second sentence

[yujin-emma]

Wrong repo