refactor(gui): Provider Instances Configurator into its own component

apps/gui/package.json

@@ -10,6 +10,7 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "@base-ui/react": "^1.6.0",
     "@omnia/actor": "workspace:*",
     "@omnia/architect": "workspace:*",
     "@omnia/core": "workspace:*",
@@ -18,6 +19,7 @@
     "@omnia/memory": "workspace:*",
     "@omnia/scenario": "workspace:*",
     "@omnia/spatial": "workspace:*",
+    "@radix-ui/react-separator": "^1.1.11",
     "@radix-ui/react-slot": "^1.3.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",