message: fix: handle null values in time-series table
diff: @@ -192,6 +192,7 @@ const TimeTable = ({
  } else {
  v = reversedEntries[timeLag][valueField];
  }
  + if (typeof v === 'number' || typeof recent === 'number') {
  if (column.comparisonType === 'diff') {
  v = recent - v;
  } else if (column.comparisonType === 'perc') {
  @@ -199,7 +200,9 @@ const TimeTable = ({
  } else if (column.comparisonType === 'perc_change') {
  v = recent / v - 1;
  }
  - v = v || 0;
  + } else {
  + v = 'N/A';
  + }
  } else if (column.colType === 'contrib') {
  // contribution to column total
  v =
  