if-with-transition

[lifeart]

Playing with https://gist.github.com/benedikt/6326dd95a52dd444ec545be83eb2d282

Seems this approach makes the interface jelly-like and stretchy if used for each if's.
Likely should be used for if with special flag, like {{#if transitional=true}} ...
We may not need if branch destroy transition, rerender transition or initial render transition

[netlify]

❌ Deploy Preview for g-next failed.

Name	Link
🔨 Latest commit	e851288
🔍 Latest deploy log	https://app.netlify.com/sites/g-next/deploys/6675c272685e6a00087d59c8