state: use the proper default value

Now that that we compute default values, we can use Normal as the
default for letter spacing.
4 jobs for letter-spacing in 7 minutes and 28 seconds (queued for 74 minutes and 44 seconds)
latest
Status Job ID Name Coverage
  Test
passed #83485
fedora test

00:07:04

failed #82155
fedora test

00:01:58

 
  Lint
manual #82157
allowed to fail manual
clippy
passed #82156
rustfmt

00:00:23