We got things sliggghhhtly wrong in #1980. That diff was attempting to
fix a bug where the text measurement element would refuse to go above
the viewport size in safari. This was most obvious in the case where
there was no fixed width on a text shape, and that diff fixed that case,
but it was also happening when a fixed width text shape was wider than
viewport - which wasn't covered by that fix. It turned out that that fix
also introduced a bug where shapes would no longer grow along the y-axis
- in part because the relationship between `width`, `maxWidth`, and
`minWidth` is very confusing.
The one-liner fix is to just use `max-content` instead of `fit-content`
- that way, the div ignores the size of its container. But I also
cleared up the API for text measurement to remove the `width` property
entirely in favour of `maxWidth`. I think this makes things much clearer
and as far as I can tell doesn't affect anything.
Closes#1998
### Change Type
- [x] `patch` — Bug fix
### Test Plan
1. Create an arrow & geo shape with labels, plus a note and text shape
2. Try to break text measurement - overflow the bounds, make very wide
text, experiment with fixed/auto-size text, etc.
92886e1f40