fix: build error

scripts/pre-build-site/pre-build-site.sh

@@ -1,4 +1,7 @@
-curl -f https://get.pnpm.io/v6.16.js | node - add --global pnpm@6
+if ! [[ -x $(command -v pnpm) ]]; then
+  curl -f https://get.pnpm.io/v6.16.js | node - add --global pnpm@6
+fi
+
 pnpm run build:package
 
 pnpm pack

src/dropdown/demos/enUS/index.demo-entry.md

@@ -1,20 +1,20 @@
 # Dropdown
 
-When you have some functions to trigger.vue.
+When you have some functions to trigger.
 
 ## Demos
 
 ```demo
 basic.vue
 icon.vue
-trigger
+trigger.vue
 cascade.vue
 arrow.vue
 placement.vue
 size.vue
 manual-position.vue
-batch-render.vue.vue
-render
+batch-render.vue
+render.vue
 option-props.vue
 ```
 

src/dropdown/demos/zhCN/index.demo-entry.md

@@ -14,8 +14,8 @@ placement.vue
 size.vue
 group-debug.vue
 manual-position.vue
-batch-render.vue.vue
-render
+batch-render.vue
+render.vue
 option-props.vue
 ```