Add chart with workflow statistics

package-lock.json

package.json

src/client/workflow/index.ts

src/client/workflow/models/WorkflowStatistic.ts

src/client/workflow/services/WorkflowService.ts

src/components/workflows/WorkflowStatisticsChart.vue

src/main.ts

src/utils/DayjsAdapter.ts

src/views/workflows/WorkflowView.vue