Set UI components that are invisible on page load to start that way.
Set UI components that are invisible on page load to start that way.

This avoids an awkward flashing of a UI with too many open windows,
on the initial page load.

nomeata/codeworld,parvmor/codeworld,parvmor/codeworld,stefan-j/codeworld,alphalambda/codeworld,parvmor/codeworld,venkat24/codeworld,pranjaltale16/codeworld,three/codeworld,venkat24/codeworld,nomeata/codeworld,pranjaltale16/codeworld,pranjaltale16/codeworld,stefan-j/codeworld,tgdavies/codeworld,google/codeworld,tgdavies/codeworld,nomeata/codeworld,alphalambda/codeworld,tgdavies/codeworld,google/codeworld,alphalambda/codeworld,venkat24/codeworld,stefan-j/codeworld,google/codeworld,three/codeworld,three/codeworld