Make "style set property" code smaller

[titoBouzout]

This is kind of low-hanging fruit low effort edit to make the output smaller. It adds a setStyleProperty helper.

While Solid code is hella small already, the code generated could add up depending on use case. This is a suggestion to make the output smaller.

Given the output, I am figuring there may be more opportunities to make it even smaller. So I'm going to have a look at that. .. 🤔 Yeah, I was able to "optimize" 1 case, from

_$effect(_$p => _$setStyleProperty(_el$56, "color", (_$p = a())));

to

_$effect(_$p => _$setStyleProperty(_el$56, "color", a());

_$p is unused, but treeshaked I suppose.

On the performance side of things (besides avoiding that assignement), this adds up a function call, but at the same time, when stuff it's a signal/store it removes a double-access. Without any scientific proof I would guess this performs better... but Im just making that up.