Data textarea should not word-wrap

[blokhin]

A suggested solution for https://github.com/tilde-lab/cifplayer/blob/master/app/app.view.css.ts#L35

flex: {direction: 'row' },

as well as

Body: {
  flex: { direction: 'column' },
}

and for https://github.com/tilde-lab/cifplayer/blob/master/app/app.view.tree#L15

body / <= Body $mol_view sub /

indeed prevent word-wraping, but the initial empty textarea becomes too short (cut).