<a
  class="overlay-link"
  ng-click="toggleOverlay()"
  ng-disabled="isLoading"
  uib-tooltip="Toggle Activity Instance Statistics"
  tooltip-placement="bottom">
  Activity Instance Statistics:
  <span ng-if="toggle && !isLoading">on <input type="radio" checked="" class="toggle" ></span>
  <span ng-if="!toggle && !isLoading">off <input type="radio" class="toggle"> </span>
  <span ng-if="isLoading">loading...</span>
</a>

<a
  class="overlay-link"
  ng-click="toggleOverlay()"
  ng-disabled="isLoading"
  uib-tooltip="{{ 'PLUGIN_DIAGRAM_ACTIVITY_STATISTICS_TOOLTIP' | translate }}"
  tooltip-placement="bottom">
  {{ 'PLUGIN_DIAGRAM_ACTIVITY_STATISTICS' | translate }}
  <span ng-if="toggle && !isLoading">{{ 'PLUGIN_DIAGRAM_ACTIVITY_STATISTICS_ON' | translate }} <input type="radio" checked="" class="toggle" ></span>
  <span ng-if="!toggle && !isLoading">{{ 'PLUGIN_DIAGRAM_ACTIVITY_STATISTICS_OFF' | translate }}<input type="radio" class="toggle"> </span>
  <span ng-if="isLoading">{{ 'PLUGIN_DIAGRAM_ACTIVITY_STATISTICS_LOADING' | translate }}</span>
</a>

Add translation strings for statistics and heatmap toggle
chore(cockpit): Add translation strings for statistics and heatmap toggle

related to CAM-9126
