fix(collapse): 修复折叠面板禁用时图标颜色

Author: Lucky-Ya-Q

packages/devui-vue/devui/collapse/src/collapse.scss

@@ -33,6 +33,10 @@
  &.#{$devui-prefix}-collapse__item--disabled {
  color: $devui-disabled-text;
  cursor: not-allowed;
+
+ & > .#{$devui-prefix}-collapse__open-icon svg path {
+ fill: currentColor !important;
+ }
  }
 
  &:not(.#{$devui-prefix}-collapse__item--disabled) {