Prevent model issues when preset 0 doesn't exists (#489)

Author: frenck

src/wled/models.py

@@ -660,7 +660,7 @@ def update_from_dict(self, data: dict) -> Device:
             # we split those out, so we can handle those correctly.
 
             # Nobody cares about 0.
-            _presets.pop("0")
+            _presets.pop("0", None)
 
             presets = [
                 Preset.from_dict(int(preset_id), preset, self.effects, self.palettes)