Updated the webgpu stuff to have webgl as fallback

src/assets/i18n/en.json

@@ -512,8 +512,9 @@
       "DISCLAIMER_4": "The XPBD Compromise: XPBD completely bypasses this complex matrix problem by acting as a local solver. It combines the absolute stability of an implicit solver with the enormous speed, parallelizability, and dynamic adaptability of an explicit system."
     }
   },
-  "WEBGPU": {
-    "NOT_SUPPORTED": "WebGPU could not be started. Please check if your browser supports WebGPU."
+  "GPU": {
+    "WEBGL_FALLBACK": "WebGPU is not available. Using WebGL as fallback. Performance may be reduced.",
+    "NOT_SUPPORTED": "Neither WebGPU nor WebGL could be initialized. GPU visualizations are unavailable."
   },
   "ALGORITHM": {
     "TITLE": "Algorithms",