feat(stats): show work and time-off lengths (#66)

src/app/components/calendar-year/calendar-year.html

@@ -1257,6 +1257,44 @@
 					<dt>{{ tr().planning.statistics.leaveDays }}</dt>
 					<dd>{{ plan.placements.length }}</dd>
 				</div>
+				<div>
+					<dt>
+						{{ tr().planning.daysGained }} ({{ tr().planning.statistics.calendarDays }})
+					</dt>
+					<dd>{{ formatStatistic(plan.metrics.nonWorkingDayGain) }}</dd>
+				</div>
+				<div>
+					<dt>
+						{{ tr().planning.statistics.averageWorkSequence }} ({{
+							tr().planning.statistics.workingDays
+						}})
+					</dt>
+					<dd>{{ formatStatistic(plan.metrics.averageWorkSequence) }}</dd>
+				</div>
+				<div>
+					<dt>
+						{{ tr().planning.longestWorkSequence }} ({{
+							tr().planning.statistics.workingDays
+						}})
+					</dt>
+					<dd>{{ formatStatistic(plan.metrics.longestWorkSequence) }}</dd>
+				</div>
+				<div>
+					<dt>
+						{{ tr().planning.statistics.averageTimeOffPeriod }} ({{
+							tr().planning.statistics.calendarDays
+						}})
+					</dt>
+					<dd>{{ formatStatistic(plan.metrics.averageTimeOffPeriod) }}</dd>
+				</div>
+				<div>
+					<dt>
+						{{ tr().planning.statistics.longestTimeOffPeriod }} ({{
+							tr().planning.statistics.calendarDays
+						}})
+					</dt>
+					<dd>{{ formatStatistic(plan.metrics.longestTimeOffPeriod) }}</dd>
+				</div>
 			</dl>
 		}
 	</mat-dialog-content>