Improve the error message if resharding fails to start due to lack of cardinality in the shard key

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    • Type: Task
    • Resolution: Unresolved
    • Priority: Major - P3
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      Resharding fails with the error message of "The shard key provided does not have enough cardinality to make the required number of chunks of 90, it can only make 1 chunks" if the shard key doesn't have enough cardinality to make the default number of chunks which is 90 due to SERVER-92762.
      Improve this error message to include remediation.

      The shard key provided does not have enough cardinality to make the required number of chunks of 90, it can only make 1 chunks. If this is intended, reduce the numInitialChunks parameter in reshardCollection command to 1, and retry.
      

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              Reporter:
              Ratika Gandhi
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                Created:
                Updated: