message: fix(plugin-chart-pivot-table): dont display nulls as 0
diff: @@ -54,7 +54,7 @@ const iconStyle = { stroke: 'black', strokeWidth: '16px' };
  const aggregatorsFactory = (formatter: NumberFormatter) => ({
  Count: aggregatorTemplates.count(formatter),
  'Count Unique Values': aggregatorTemplates.countUnique(formatter),
  - 'List Unique Values': aggregatorTemplates.listUnique(', '),
  + 'List Unique Values': aggregatorTemplates.listUnique(', ', formatter),
  Sum: aggregatorTemplates.sum(formatter),
  Average: aggregatorTemplates.average(formatter),
  Median: aggregatorTemplates.median(formatter),
  @@ -62,7 +62,7 @@ const aggregatorsFactory = (formatter: NumberFormatter) => ({
  'Sample Standard Deviation': aggregatorTemplates.stdev(1, formatter),
  Minimum: aggregatorTemplates.min(formatter),
  Maximum: aggregatorTemplates.max(formatter),
  - First: aggregatorTemplates.first(),
  + First: aggregatorTemplates.first(formatter),
  Last: aggregatorTemplates.last(formatter),
  'Sum as Fraction of Total': aggregatorTemplates.fractionOf(
  aggregatorTemplates.sum(),
  @@ -147,11 +147,13 @@ export default function PivotTableChart(props: PivotTableProps) {
  data.reduce(
  (acc: Record<string, any>[], record: Record<string, any>) => [
  ...acc,
  - ...metricNames.map((name: string) => ({
  + ...metricNames
  + .map((name: string) => ({
  ...record,
  [METRIC_KEY]: name,
  value: record[name],
  - })),
  + }))
  + .filter(record => record.value !== null),
  ],
  [],
  ),
  