Default vertical alignment for child components changed from Flask 12.2 to 12.3

[Montoya]

The following code:

<Box direction="horizontal" alignment="space-between">
    <Input name="input-text" placeholder="Your text" />
    <Button type="submit">Transform</Button>
  </Box>

Produces different vertical alignment for the child components in Flask 12.2 vs 12.3:

There also appears to be different horizontal padding on the Button component between the two versions.