- border slicing via graphical overlay

- npm updates

package.json

@@ -7,6 +7,8 @@
         "@fortawesome/fontawesome-free": "^5.15.2",
         "@types/three": "^0.129.1",
         "bulma": "^0.9.2",
+        "concaveman": "github:grassick/concaveman#patch-1",
+        "hull.js": "^0.2.11",
         "lodash": "^4.17.21",
         "normalize.css": "^8.0.1",
         "proj4": "^2.6.3",
@@ -33,7 +35,7 @@
         "node-sass": "^6.0.0",
         "resolve-url-loader": "^4.0.0",
         "sass-loader": "^12.1.0",
-        "style-loader": "^2.0.0",
+        "style-loader": "^3.0.0",
         "terser-webpack-plugin": "^5.0.3",
         "url-loader": "^4.1.1",
         "webpack": "^5.7.0",