fix(switch): 组件 size 的优先级（DevCloudFE#1199）

Author: vaebe

packages/devui-vue/devui/switch/src/switch-types.ts

@@ -8,8 +8,7 @@ export const switchProps = {
  default: false,
  },
  size: {
- type: String as PropType<SwitchSize>,
- default: 'md',
+ type: String as PropType<SwitchSize>
  },
  color: {
  type: String,

packages/devui-vue/devui/switch/src/use-switch.ts

@@ -5,7 +5,9 @@ import { SwitchProps, UseSwitchFn } from './switch-types';
 export function useSwitch(props: SwitchProps, ctx: SetupContext): UseSwitchFn {
  const formContext = inject(FORM_TOKEN, undefined);
  const switchDisabled = computed(() => formContext?.disabled || props.disabled);
- const switchSize = computed(() => formContext?.size || props.size);
+
+ const switchSize = computed(() => props.size || formContext?.size || 'md');
+
  const canChange = () => {
  if (switchDisabled.value) {
  return Promise.resolve(false);