Fix the unexpected shutdown issue for exe (#124)

Author: ZhangGe6

README.md

@@ -54,7 +54,7 @@ Click the url in the output info generated by flask (defaults to `http://127.0.0
 <details>
   <summary>Click to expand</summary>
 
-- Windows: Download onnx-modifier.exe (28.3MB) [Google Drive](https://drive.google.com/file/d/1LRXgZauQ5BUENe_PvilRW8WvSO-4Jr9j/view?usp=sharing) / [Baidu NetDisk](https://pan.baidu.com/share/init?surl=CDGCC5bzmRL4b0F60PANYg&pwd=vh32), double-click it and enjoy.
+- Windows: Download onnx-modifier.exe (28.3MB) [Google Drive](https://drive.google.com/file/d/1LRXgZauQ5BUENe_PvilRW8WvSO-4Jr9j/view?usp=sharing) / [Baidu NetDisk](https://pan.baidu.com/s/1ZUWP615F9EcsHQLijCCmQA?pwd=vh32), double-click it and enjoy.
   - Edge browser is used for runtime environment by default.
 
 > I recorded how I made the the executable file in `app_desktop.py`. The executable file for other platforms are left for future work.

README_zh-CN.md

@@ -48,7 +48,7 @@
   ```
 
 ## 从可执行文件启动
-- Windows: 下载可执行文件onnx-modifier.exe (28.3MB) [Google Drive](https://drive.google.com/file/d/1LRXgZauQ5BUENe_PvilRW8WvSO-4Jr9j/view?usp=sharing) / [Baidu NetDisk](https://pan.baidu.com/share/init?surl=CDGCC5bzmRL4b0F60PANYg&pwd=vh32)，双击即可启动。
+- Windows: 下载可执行文件onnx-modifier.exe (28.3MB) [Google Drive](https://drive.google.com/file/d/1LRXgZauQ5BUENe_PvilRW8WvSO-4Jr9j/view?usp=sharing) / [Baidu NetDisk](https://pan.baidu.com/s/1ZUWP615F9EcsHQLijCCmQA?pwd=vh32)，双击即可启动。
   - 默认使用Edge浏览器作为运行环境。
 > 生成可执行文件的步骤记录在`app_desktop.py`文件中。未来会为其他平台生成可执行文件。
 

app_desktop.py

@@ -10,7 +10,7 @@
 
 from app import app
 
-FlaskUI(app, maximized=True, idle_interval=5).run()
+FlaskUI(app, maximized=True, idle_interval=float("inf")).run()
 
 '''
 This script is used for generating excutable files.