Editor: New line on Enter, run query on Shift+Enter (#24654)

* Editor: New line on Enter, run query on Shift+Enter

- default Enter behavior on query editor fields should be a new line
- special behavior should require a special key: running a query is now
done on Shift-Enter
- Plugins order had to be changed because when typeahead is shown, Enter
is accepting the suggestion

* Run with ctrl-enter, hint in query placeholder

* Fix Kusto field behavior for Enter

* Fix Kusto field behavior for default suggestion

public/app/plugins/datasource/cloudwatch/components/LogsQueryField.tsx

@@ -357,7 +357,7 @@ export class CloudWatchLogsQueryField extends React.PureComponent<CloudWatchLogs
               onRunQuery={this.props.onRunQuery}
               onTypeahead={this.onTypeahead}
               cleanText={cleanText}
-              placeholder="Enter a CloudWatch Logs Insights query"
+              placeholder="Enter a CloudWatch Logs Insights query (run with Shift+Enter)"
               portalOrigin="cloudwatch"
               syntaxLoaded={syntaxLoaded}
               disabled={loadingLogGroups || selectedLogGroups.length === 0}