## What?
Removes `experimental.appDir` this was leftover from when I flipped the
switch.
Kept the config file as in the future we might add future flags and
such. It also helps that it has the types comment included so you always
get types.
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---------
Co-authored-by: JJ Kasper <jj@jjsweb.site>
## Feature
NEXT-54
When there's an error in the one of the root level pages, there's no way to handle it. The team discussed this and decided there should be a global error boundary to pick up anything not handled further down in the tree. It can be called `global-error.js`.
Co-authored-by: Tim Neutkens <6324199+timneutkens@users.noreply.github.com>
