Summary pie charts

We now display pie charts using all available ES term results, but we list only the top 5 terms (.slice(0, 5)):

Notice the many different parts of the chart!

Update <PieChart component

<PieChart
  data={
  taxonomyGenusSpeciesOverview.terms.slice(0, 5).map(
    (term) => ({
      value: term.count,
      label: term.term,
    }),
  )} />

1. Passing data to PieChart is O.K.
2. Add option to declare maxTerms={ 8 } (default value is 5).
3. Add option to set total (sum of all values)
4. Add option to set missing

The updated PieChart should calculate the sum of other terms (total - missing - sum_of_topX_terms).

It should automatically add two sections to each pie:

1. The { label: t('...other'), value: other }
2. The { label: t('...missing'), value: missing }

A PieChart with maxTerms === 5 would potentially show the 5 top terms (using .slice(0, 5)) plus 2 generated entries (other + missing).

Update all piecharts

We use piecharts on various pages. Add total and missing attributes to all.