Feat resumability (#547)

* add resumability functionality

---------

Co-authored-by: arc-alex <ac@omnivox.dk>
Co-authored-by: Carlos Valente <34649812+cpvalente@users.noreply.github.com>

apps/test-db/db.json

@@ -25,7 +25,8 @@
       "user9": "",
       "type": "event",
       "revision": 0,
-      "id": "aa42f"
+      "id": "aa42f",
+      "cue": "1"
     },
     {
       "duration": 600000,
@@ -58,7 +59,8 @@
       "user9": "",
       "type": "event",
       "revision": 0,
-      "id": "d71bc"
+      "id": "d71bc",
+      "cue": "2"
     },
     {
       "title": "Lunch",
@@ -74,7 +76,7 @@
       "timerType": "count-down",
       "timeStart": 39600000,
       "timeEnd": 720000,
-      "duration": 0,
+      "duration": 47520000,
       "isPublic": true,
       "skip": false,
       "colour": "",
@@ -90,7 +92,8 @@
       "user9": "",
       "type": "event",
       "revision": 0,
-      "id": "da5b4"
+      "id": "da5b4",
+      "cue": "3"
     }
   ],
   "project": {