Bump sortablejs from 1.13.0 to 1.14.0 in /frontend

Bumps [sortablejs](https://github.com/SortableJS/Sortable) from 1.13.0 to 1.14.0.
- [Release notes](https://github.com/SortableJS/Sortable/releases)
- [Commits](https://github.com/SortableJS/Sortable/compare/1.13.0...1.14.0)

---
updated-dependencies:
- dependency-name: sortablejs
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

frontend/package.json

@@ -38,7 +38,7 @@
         "localforage": "^1.9.0",
         "localforage-memoryStorageDriver": "^0.9.2",
         "overlayscrollbars": "^1.13.1",
-        "sortablejs": "^1.13.0",
+        "sortablejs": "^1.14.0",
         "v-calendar": "^2.3.0",
         "vue-typeahead-bootstrap": "^2.8.0",
         "vue2-leaflet": "^2.7.1"

frontend/yarn.lock

@@ -5923,10 +5923,10 @@ sockjs@^0.3.21:
     uuid "^3.4.0"
     websocket-driver "^0.7.4"
 
-sortablejs@^1.13.0:
-  version "1.13.0"
-  resolved "https://registry.yarnpkg.com/sortablejs/-/sortablejs-1.13.0.tgz#3ab2473f8c69ca63569e80b1cd1b5669b51269e9"
-  integrity sha512-RBJirPY0spWCrU5yCmWM1eFs/XgX2J5c6b275/YyxFRgnzPhKl/TDeU2hNR8Dt7ITq66NRPM4UlOt+e5O4CFHg==
+sortablejs@^1.14.0:
+  version "1.14.0"
+  resolved "https://registry.yarnpkg.com/sortablejs/-/sortablejs-1.14.0.tgz#6d2e17ccbdb25f464734df621d4f35d4ab35b3d8"
+  integrity sha512-pBXvQCs5/33fdN1/39pPL0NZF20LeRbLQ5jtnheIPN9JQAaufGjKdWduZn4U7wCtVuzKhmRkI0DFYHYRbB2H1w==
 
 source-list-map@^2.0.0, source-list-map@^2.0.1:
   version "2.0.1"