perf: 下拉菜单显示优化

package-lock.json

@@ -4569,7 +4569,7 @@
     },
     "node_modules/pptxtojson": {
       "version": "2.0.3",
-      "resolved": "https://registry.npmmirror.com/pptxtojson/-/pptxtojson-2.0.3.tgz",
+      "resolved": "https://registry.npmjs.org/pptxtojson/-/pptxtojson-2.0.3.tgz",
       "integrity": "sha512-uUUT2qYvxaSXunqAIgSCHOHPbpinmsMgKQeOoJU4j03l9sTM3TvKeeZsJ7IKIMgxCqhq2g7dbY2eusGJZ4UZkw==",
       "license": "MIT",
       "dependencies": {
@@ -9174,7 +9174,7 @@
     },
     "pptxtojson": {
       "version": "2.0.3",
-      "resolved": "https://registry.npmmirror.com/pptxtojson/-/pptxtojson-2.0.3.tgz",
+      "resolved": "https://registry.npmjs.org/pptxtojson/-/pptxtojson-2.0.3.tgz",
       "integrity": "sha512-uUUT2qYvxaSXunqAIgSCHOHPbpinmsMgKQeOoJU4j03l9sTM3TvKeeZsJ7IKIMgxCqhq2g7dbY2eusGJZ4UZkw==",
       "requires": {
         "jszip": "^3.10.1",

src/components/Select.vue

@@ -65,11 +65,13 @@ const props = withDefaults(defineProps<{
   options: SelectOption[]
   disabled?: boolean
   autofocus?: boolean
+  defaultLabel?: string
   search?: boolean
   searchLabel?: string
 }>(), {
   disabled: false,
   autofocus: false,
+  defaultLabel: '',
   search: false,
   searchLabel: '搜索',
 })
@@ -86,7 +88,7 @@ const optionsRef = useTemplateRef<HTMLElement>('optionsRef')
 const searchInputRef = useTemplateRef<InstanceType<typeof Input>>('searchInputRef')
 
 const showLabel = computed(() => {
-  return props.options.find(item => item.value === props.value)?.label || props.value
+  return props.options.find(item => item.value === props.value)?.label || props.defaultLabel || props.value
 })
 
 const showOptions = computed(() => {

src/views/Editor/Toolbar/SlideDesignPanel/index.vue

@@ -101,6 +101,7 @@
     <div class="row">
       <Select 
         style="width: 100%;" 
+        defaultLabel="自定义"
         :value="viewportRatio" 
         @update:value="value => updateViewportRatio(value as number)"
         :options="[