Feat: add `timestamp` option on copy

[injae-kim]

Hi. when I copy script and paste it on ai, sometimes timestamp info is really useful.

e.g. summarize with time stamp
  - prompt: 1:00~2:00: explain A ..
  - 2:30 ~ 5:00: explain B ..

So can we add "extracit with timestamp" option?
Maybe I can contribute it or if you make pr, please mention me (I'll also review it 😃)

thanks for awesome opensource! cpdown is really useful.

[ysm-dev]

Oh, that's a great idea!
Thank you for leaving the first issue.

I would really appreciate it if you could contribute directly by submitting a PR.

https://github.com/ysm-dev/cpdown/blob/main/lib/yt/convertSrtToText.ts

It looks like we could add an option and modify this function.

[injae-kim]

oh I'll check convertSrtToText.ts and create PR on this weekend. thanks!

sorry for late, I'll create PR until this weekend 😅