feat: 更新 README 并添加清空字幕记录功能

- 更新 README 中的项目状态和下载链接
- 添加清空字幕记录的功能
- 优化字幕记录的导出和清空界面
- 更新代码以支持跨平台兼容性
- 添加开源协议

package.json

@@ -1,10 +1,10 @@
 {
   "name": "auto-caption",
   "version": "0.0.1",
-  "description": "A cross-platform video playback and subtitle display software.",
+  "description": "A cross-platform subtitle display software.",
   "main": "./out/main/index.js",
   "author": "himeditator",
-  "homepage": "https://electron-vite.org",
+  "homepage": "https://github.com/HiMeditator/auto-caption",
   "scripts": {
     "format": "prettier --write .",
     "lint": "eslint --cache .",