Add led pin setting

src/settings.py

@@ -59,7 +59,7 @@ class Settings(dict):
                 elif key == "color2":
                     patterns.set_color2(tuple(int(value[i:i+2], 16) for i in self.color_order))  # Convert hex to RGB
                 elif key == "num_leds":
-                    patterns.update_num_leds(4, value)
+                    patterns.update_num_leds(self["led_pin"], value)
                 elif key ==  "pattern":
                     if not patterns.select(value):
                         return "Pattern doesn't exist", 400
@@ -78,6 +78,8 @@ class Settings(dict):
                     else: self.color_order = (1, 3, 5)
                 elif key == "id":
                     pass
+                elif key == "led_pin":
+                    patterns.update_num_leds(value, self["num_leds"])
                 else:
                     return "Invalid key", 400
                 self[key] = value