fix(monorepo/client): errors due to missing dependencies

apps/client/package.json

@@ -23,13 +23,50 @@
     "build:webpack": "tsx node_modules/webpack/bin/webpack.js -c webpack.config.ts"
   },
   "devDependencies": {
+    "@excalidraw/excalidraw": "0.18.0",
+    "@fullcalendar/core": "6.1.17",
+    "@fullcalendar/daygrid": "6.1.17",
+    "@fullcalendar/interaction": "6.1.17",
+    "@fullcalendar/list": "6.1.17",
+    "@fullcalendar/multimonth": "6.1.17",
+    "@fullcalendar/timegrid": "6.1.17",
+    "@mermaid-js/layout-elk": "0.1.7",
+    "@mind-elixir/node-menu": "1.0.5",
+    "@types/jquery": "3.5.32",
+    "@types/leaflet-gpx": "1.3.7",
+    "@types/leaflet": "1.9.17",
     "autoprefixer": "10.4.21",
     "copy-webpack-plugin": "13.0.0",
+    "i18next-http-backend": "3.0.2",
+    "jquery-hotkeys": "0.2.2",
+    "jquery.fancytree": "2.38.5",
+    "jquery": "3.7.1",
+    "jsplumb": "2.15.6",
+    "knockout": "3.5.1",
+    "leaflet-gpx": "2.1.2",
+    "leaflet": "1.9.4",
+    "mark.js": "8.11.1",
+    "i18next": "25.0.0",
+    "mermaid": "11.6.0",
+    "mind-elixir": "4.5.1",
     "mini-css-extract-plugin": "2.9.2",
+    "panzoom": "9.4.3",
+    "react-dom": "18.3.1",
+    "react": "18.3.1",
+    "split.js": "1.6.5",
+    "svg-pan-zoom": "3.6.2",
+    "ts-loader": "9.5.2",
     "tsx": "4.19.3",
-    "webpack": "5.99.5",
+    "vanilla-js-wheel-zoom": "9.0.4",
     "webpack-cli": "6.0.1",
     "webpack-dev-middleware": "7.4.2",
-    "ts-loader": "9.5.2"
+    "webpack": "5.99.5",
+    "sass": "1.86.3",
+    "sass-loader": "16.0.5",
+    "script-loader": "0.7.2",
+    "electron": "35.1.5",
+    "debounce": "2.2.0",
+    "draggabilly": "3.0.0",
+    "vitest": "3.1.1"
   }
 }

apps/client/tsconfig.json

@@ -2,6 +2,7 @@
     "compilerOptions": {
         "module": "ESNext",
         "moduleResolution": "bundler",
+        "target": "ES2015",
         "resolveJsonModule": true,
         "allowSyntheticDefaultImports": true
     },