0.3.0

Couple new things:

Dev Updates

• updated all build dependencies to latest
• updated all peer dependencies to latest: React -> ^16.x, styled-components -> ^5.x
• switched from flow to typescript
• migrated to use react hooks because this is a low-stakes way to try it out

Component Updates

• fixed a few display issues where the next panel would show around the edges of the flipping panels, or not show up until the flipping was done
• now uses a default of 1em for characterWidth, to match aesthetic expectations