Make display of total count non-blocking in the tabular master view

[asishallab]

Currently the table view for any data model waits until the total count has been loaded before the user can perform any action on the table. As in relational database management systems (RDBMS) count queries can be slow due to inherent restrictions the component is blocked without need during the execution of the request that sends the count GraphQL query to the respective server.

• Asses whether it is possible with limited work to make this non-blocking
• If so, make the total count show a loading icon and already make the table responsive while the total count is still being loaded.