Add vue vite example

apps/vue-vite-app/src/components/FFmpegDemo.vue

@@ -0,0 +1,58 @@
+<template>
+  <video :src="video" controls />
+  <br />
+  <button @click="transcode">Start</button>
+  <p>{{ message }}</p>
+</template>
+
+<script lang="ts">
+import { FFmpeg } from '@ffmpeg/ffmpeg'
+import type { LogEvent } from '@ffmpeg/ffmpeg/dist/esm/types'
+import { fetchFile, toBlobURL } from '@ffmpeg/util'
+import { defineComponent, ref } from 'vue'
+
+const baseURL = 'https://unpkg.com/@ffmpeg/core@0.12.1/dist/esm'
+const videoURL = 'https://ffmpegwasm.netlify.app/video/video-15s.avi'
+
+export default defineComponent({
+  name: 'App',
+  setup() {
+    const ffmpeg = new FFmpeg()
+    const message = ref('Click Start to Transcode')
+    let video = ref('')
+
+    async function transcode() {
+      message.value = 'Loading ffmpeg-core.js'
+      ffmpeg.on('log', ({ message: msg }: LogEvent) => {
+        message.value = msg
+      })
+      await ffmpeg.load({
+        coreURL: await toBlobURL(`${baseURL}/ffmpeg-core.js`, 'text/javascript'),
+        wasmURL: await toBlobURL(`${baseURL}/ffmpeg-core.wasm`, 'applicaiton/wasm')
+      })
+      message.value = 'Start transcoding'
+      await ffmpeg.writeFile('test.avi', await fetchFile(videoURL))
+      await ffmpeg.exec(['-i', 'test.avi', 'test.mp4'])
+      message.value = 'Complete transcoding'
+      const data = await ffmpeg.readFile('test.mp4')
+      video.value = URL.createObjectURL(new Blob([(data as Uint8Array).buffer], { type: 'video/mp4' }))
+    }
+    return {
+      video,
+      message,
+      transcode
+    }
+  }
+})
+</script>
+
+<style>
+#app {
+  font-family: Avenir, Helvetica, Arial, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  text-align: center;
+  color: #2c3e50;
+  margin-top: 60px;
+}
+</style>