functional undo-redo

website/package-lock.json

@@ -13,11 +13,11 @@
                 "chart.js": "^4.4.2",
                 "clsx": "^2.1.0",
                 "gpx": "file:../gpx",
-                "immer": "^10.1.1",
                 "lucide-svelte": "^0.365.0",
                 "mapbox-gl": "^3.2.0",
                 "mode-watcher": "^0.3.0",
                 "sortablejs": "^1.15.2",
+                "structurajs": "^0.12.0",
                 "svelte-i18n": "^4.0.0",
                 "svelte-sonner": "^0.3.22",
                 "tailwind-merge": "^2.2.2",
@@ -3357,15 +3357,6 @@
                 "node": ">= 4"
             }
         },
-        "node_modules/immer": {
-            "version": "10.1.1",
-            "resolved": "https://registry.npmjs.org/immer/-/immer-10.1.1.tgz",
-            "integrity": "sha512-s2MPrmjovJcoMaHtx6K11Ra7oD05NT97w1IC5zpMkT6Atjr7H8LjaDd81iIxUYpMKSRRNMJE703M1Fhr/TctHw==",
-            "funding": {
-                "type": "opencollective",
-                "url": "https://opencollective.com/immer"
-            }
-        },
         "node_modules/import-fresh": {
             "version": "3.3.0",
             "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.3.0.tgz",
@@ -5135,6 +5126,11 @@
                 "url": "https://github.com/sponsors/sindresorhus"
             }
         },
+        "node_modules/structurajs": {
+            "version": "0.12.0",
+            "resolved": "https://registry.npmjs.org/structurajs/-/structurajs-0.12.0.tgz",
+            "integrity": "sha512-vadDl3zCv6OM2dXfzelUH3RLhNu9pmIEZU7zS0jIgMR3BDKIk44fDd/X9KK9LE27MMU+/aw3ibBTQQgBH0zfiw=="
+        },
         "node_modules/subtag": {
             "version": "0.5.0",
             "resolved": "https://registry.npmjs.org/subtag/-/subtag-0.5.0.tgz",