Make Schema Collapsed by Default

[piti118]

I think this gives a better ux since schema can be guessed from example and it tends to be way longer than the body itself. Having it displayed by default is a bit distracting.

#245

[coveralls]

Coverage remained the same at 58.211% when pulling 8e48db0 on piti118:patch-1 into c52a482 on danielgtaylor:olio-theme.

[w0k3]

@danielgtaylor will this ever get pulled? The patch looks fine.

[bluenex]

I have tested this and found that I can't expand the schema as the parent height is already fixed while schema height is still 0.

I still can't figure how to workaround this though.