[Notebook] Entries and Embeds need to use the same timesystem #2920 (#2923)

Co-authored-by: Andrew Henry <akhenry@gmail.com>

src/plugins/notebook/components/notebook-entry.vue

@@ -221,7 +221,7 @@ export default {
             return position;
         },
         formatTime(unixTime, timeFormat) {
-            return Moment(unixTime).format(timeFormat);
+            return Moment.utc(unixTime).format(timeFormat);
         },
         moveSnapshot(snapshotId) {
             const snapshot = this.snapshotContainer.getSnapshot(snapshotId);