Make babylonJS work with ipywidgets8 and backwards compatible

Author: SarantopoulosKon

package.json

@@ -56,7 +56,7 @@
     "watch:nbextension": "NODE_OPTIONS=--max-old-space-size=4096 webpack --watch --mode=development"
   },
   "dependencies": {
-    "@jupyter-widgets/base": "^1.1.10 || ^2 || ^3 || ^4",
+    "@jupyter-widgets/base": "^2 || ^3 || ^4 || ^5 || ^6",
     "@jupyterlab/application": "^3.4.5",
     "@tiledb-inc/viz-core": "^1.0.2-alpha.2"
   },
@@ -88,7 +88,13 @@
   },
   "jupyterlab": {
     "extension": "lib/plugin",
-    "outputDir": "pybabylonjs/labextension"
+    "outputDir": "pybabylonjs/labextension",
+    "sharedPackages": {
+      "@jupyter-widgets/base": {
+        "bundled": false,
+        "singleton": true
+      }
+    }
   },
   "styleModule": "style/index.js"
 }

setup.py

@@ -70,7 +70,7 @@
     platforms="Linux, Mac OS X, Windows",
     keywords=["Jupyter", "JupyterLab", "JupyterLab3"],
     install_requires=[
-        "ipywidgets>=7.0.0",
+        "ipywidgets>=7,<9",
     ],
     classifiers=[
         "License :: OSI Approved :: MIT License",