Remove JetSnack sample in favor of JetCaster

[kropp]

JetSnack sample is outdated and hard to maintain because of ConstraintLayout
Recently, there was another sample app ported from Jetpack samples to Multiplatform
https://github.com/kotlin-hands-on/jetcaster-kmp-migration

We don't need many similar samples, so let's keep the newer one only.

Fixes CMP-9404 Remove Jetsnack sample

Testing

N/A

Release Notes

N/A

[eymar]

WDYT about keeping the examples/jetsnack/README.md in case there some links to the project?
The readme can simple have a link to the new example?.

[kropp]

The only link I found is from https://github.com/Kotlin/kotlin-wasm-examples/blob/main/compose-jetsnack/README.md
Maybe we can remove it as well.

[eymar]

Souns good.

Kotlin/kotlin-wasm-examples#73

[bashor]

As I see it, unlike JetSnack, JetCaster doesn't have non-mobile targets. Is it going to be changed? Should we keep JetSnack until then?

[kropp]

JetSnack in its current state isn't a good multiplatform sample, as it is very outdated. Updating it is not feasible, as original Android implementation has been changed significantly, like Material → Material3 transition and many internal things, and the non-Android part has been also significantly different from it because of ConstraintLayout.
That's beeing said the only viable option to have it up to date is to port it again from scratch, for which we don't have capacity now.