Tracking issue to update the next release to incorporate Beta 4 UX study feedback.

Action items:

• As discussed via Teams chat on 8/30, add a getMetricByName method to the MetricsResult class. This proposed method would be syntactic sugar. The idea came from one of the Java sessions as an alternative to fetching a metric by index: #20870
  
• In the README file, document the ordering of the results when querying multiple metric names. For example, if I query "SuccessfulCalls" and another metric name, which order do those results appear in?
• In the Logs query client classes, update each "query" method such that the query parameter indicates that Kusto syntax is expected.