Introduce comments below events

Also add tomstones

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/components/Event/DateTimePicker.vue

@@ -17,7 +17,7 @@
             <label class="label">{{ label }}</label>
         </div>
         <div class="field-body">
-            <div class="field is-narrow is-grouped">
+            <div class="field is-narrow is-grouped calendar-picker">
                 <b-datepicker
                         :day-names="localeShortWeekDayNamesProxy"
                         :month-names="localeMonthNamesProxy"
@@ -108,4 +108,10 @@ export default class DateTimePicker extends Vue {
             padding: 0;
         }
     }
+
+    .calendar-picker {
+        /deep/ .dropdown-menu {
+            z-index: 200;
+        }
+    }
 </style>

js/src/components/Event/EventCard.vue

@@ -108,7 +108,7 @@ export default class EventCard extends Vue {
 }
 </script>
 
-<style lang="scss">
+<style lang="scss" scoped>
   @import "../../variables";
 
   a.card {