fix: "range" in range-around z-stack widget starts form 0 (no negativ…

…e numbers) (#379)

fix: range from 0

src/pymmcore_widgets/useq_widgets/_z.py

@@ -146,7 +146,7 @@ def __init__(self, parent: QWidget | None = None) -> None:
         self.steps.setValue(0)
 
         self.range = QDoubleSpinBox()
-        self.range.setRange(-10_000, 10_000)
+        self.range.setRange(0, 10_000)
         self.range.setSingleStep(0.1)
         self.range.setDecimals(3)
         self.range.setValue(0)