[FEATURE] Dynamically display the columns of the Top N table based on the type

[deshsidd]

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The Top N queries table can display:

1. Only queries
2. Only groups
3. Combination of queries/groups

Some columns are applicable to only queries (eg: indices) and others to only groups (eg: query count).

We should dynamically display the applicable columns based on the data in the table and only display the applicable columns.

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