fix #1649

one of the goals of my pull request, besides simplifying the code was to have localization.

It's nice that the browser can handle this, but for consistency, we'll go with vue-i18n since it is already available

webapp/src/components/EventLog.vue

@@ -31,7 +31,7 @@ export default defineComponent({
     computed: {
         timeInHours() {
             return (value: number) => {
-                return timestampToString(value);
+                return timestampToString(this.$i18n.locale, value)[0];
             };
         },
     },