Fix crash from reduce of empty array

[Minnowo]

One of my dashboard is failing because of the change of year. This fixes it. I also added a divide by 0 check in the % calculation on pie charts since I was thinking that was the problem at first.

TypeError: reduce of empty array with no initial value
./src/dashboard/Entry/DashboardTable.tsx/DashboardTable/indexedEntries<
src/dashboard/Entry/DashboardTable.tsx:34

  31 |         }, {}),
  32 |     };
  33 |     if (total) {
> 34 |         result.data['Total'] = Object.values(result.data).reduce((acc, value) => acc + value);
     | ^  35 |     }
  36 |     return result;
  37 | })

[jmattheis]

Thanks, I've fixed the underlying issue where the no data check wasn't correctly implemented for all dashboard chart types.

[jmattheis]

Released with v0.6.1