feat(samples): expand breakout session controls

[ajitkumar0828-spec]

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by making the following changes

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[ajitkumar0828-spec]

Vidcast video link : https://app.vidcast.io/share/06518527-926a-477f-96ff-335da2aef523

Jira Link : https://jira-eng-gpk2.cisco.com/jira/browse/SPARK-840110