feat: add gui for core function

[chenqianhe]

feat

• GUI for transcribing video
• GUI for choosing subtitle
• GUI for cut video

problem

• Video bytes are not used, and additional disks are read and written 求助关于ffmpeg使用pipe处理bytes数据 #23
• Streamlet's own defects: once the download button is clicked, the page will be automatically refreshed and all data will be lost

feature todo(after #23 solved)

see #22 (comment)

[chenqianhe]

@yihong0618 lint和test好像有问题，看一下？

[yihong0618]

好的，稍等

[yihong0618]

@chenqianhe 你在根目录跑一下 black . 然后再 add commit push
这个是 Lint 挂了

pip3 install black

black .
git add .
git commit -m "fix: lint for ci"
git push