vweb: add an option to disable startup message

[ArthurZhou]

add msg: false to vweb.RunParams to disable [VWeb] Running app on ...
refer to issue #17622

add an option msg: false to RunParams to disable the message
msg is true by default

example:

vweb.run_at(&App{}, vweb.RunParams{
		host: "localhost"
		port: 8080
		family: .ip
                msg: false
	})

[spytheman]

Suggested change

	msg bool = true
	startup_message bool = true

[JalonSolov]

Hmm... is it better to have startup_msg as boolean?

What if you want to have a custom startup message?

[ArthurZhou]

You can print an output manually :)
e.g.

println("[Vweb] Running app on http://localhost:8080/")
vweb.run_at(&App{}, vweb.RunParams{
	host: "localhost"
	port: 8080
	family: .ip
	startup_message: false
})

[medvednikov]

In V bools are usually named with is_x or show_x to make it clear they are bools.

startup_message sounds like a string, it should be show_startup_message: false

Verbose, but clear.

[spytheman]

startup_message sounds like a string, it should be show_startup_message: false

indeed, my bad

[JalonSolov]

To be truly explicit (and even more verbose), it should be show_default_startup_message - since it only affects the default.