fix: select docs

Author: shinokada

src/routes/docs/forms/select.md

@@ -285,7 +285,7 @@ Get started with the default toggle component example as a checkbox element to r
 <script lang="ts">
   import { MultiSelect } from "flowbite-svelte";
 
-  let multiSelected: string = [];
+  let multiSelected: string[] = [];
   let countries = [
     { value: "us", name: "United States" },
     { value: "ca", name: "Canada" },
@@ -301,7 +301,7 @@ Get started with the default toggle component example as a checkbox element to r
 ### Placeholder
 
 ```svelte example class="h-96"
-<script>
+<script lang="ts">
   import { MultiSelect } from "flowbite-svelte";
 
   let placeholder = "placeholder text";