gs-w/h

[kirylbehan]

https://github.com/gridstack/gridstack.js/blob/master/src/gridstack.ts#L1933
https://github.com/gridstack/gridstack.js/blob/master/src/gridstack.ts#L1934
id like to apply different styles to different block size and it would be more convenient to always see gs-w and gs-h attributes
is it some unknown(to me) issue behind gs-w=1 or gs-h=1 attributes ? or can it always be visible ?

[adumesny]

// NOTE: those are technically not needed anymore (v12+) as we have CSS vars for everything, but some users depends on them to render item size using CSS
// ALways write x,y otherwise it could be autoPositioned incorrectly #3181

if you look at comment I already insert them for 2+ for that reason (not used by GS) and you can easily style w/h 1 (missing styles) differently.