Also show person statistics page checkboxes on mobile devices

aleksis/apps/alsijil/frontend/components/coursebook/statistics/StatisticsForPersonPage.vue

@@ -86,10 +86,7 @@
                     <v-row class="mr-2">
                       <v-col cols="12" md="6" class="pa-0 d-flex">
                         <v-list-item-avatar
-                          v-if="
-                            mode === MODE.PARTICIPATIONS &&
-                            !$vuetify.breakpoint.mobile
-                          "
+                          v-if="mode === MODE.PARTICIPATIONS"
                         >
                           <v-item v-slot="{ active, toggle }" :value="item.id">
                             <v-simple-checkbox