fix(button): include 'fitContent' in omitted props for button component

Author: honghuangdc

src/components/button/button.vue

@@ -17,7 +17,7 @@ const emit = defineEmits<ButtonEmits>();
 
 const buttonGroupContext = useButtonGroupContext();
 
-const forwardedProps = useOmitProps(props, ['size', 'color', 'variant', 'shape', 'shadow', 'disabled']);
+const forwardedProps = useOmitProps(props, ['size', 'color', 'variant', 'shape', 'shadow', 'disabled', 'fitContent']);
 
 const cls = computed(() => {
   const { size, color, variant, shape, shadow, fitContent } = buttonGroupContext || {};