Fix: "One euro filter return none" by Fracas42:

SnuffSocket · SnuffSocket · commit 1de567081eda · 2025-04-14T03:26:57.000+03:00
EyeTrackVR/EyeTrackVR@5797fb3
diff --git a/BabbleApp/one_euro_filter.py b/BabbleApp/one_euro_filter.py
@@ -50,3 +50,6 @@ def __call__(self, x):
             self.t_prev = t
 
             return x_hat
+        else:
+            self.x_prev = x
+            return x
