Installation should stop when exiting the launcher

[chilijung]

Describe the bug
as title

To Reproduce
Steps to reproduce the behavior:

1. start launcher
2. when selecting openai or others
3. hit ctrl + c to exit
4. it continues to install

Expected behavior
should exit the command

Screenshots

[Prototype4988]

Hi Team, I would like to look into this issue. Could you assign it to me

[chilijung]

@Prototype4988 Here you go!

[Prototype4988]

Hi Team, I have done the fix attaching the screenshot from console below

[Prototype4988]

I have added the below code snippet in Launch() function

`done := make(chan os.Signal, 1)

signal.Notify(done, os.Interrupt)

// Fire off a goroutine to loop until that channel receives a signal.
// When a signal is received simply exit the program
go func() {
    for _ = range done {
        os.Exit(0)
    }
}()`

[Prototype4988]

Let me know what you think of this approach

[chilijung]

PR is merged!