Fix error with missing imports

This fixes a regression, likely introduced in 5d173f6df, which changed
the severity of missing imports from `info` back to `error`.

The cause of this issue was a more complicated error handling mechanism,
which explicitly translated IO errors to a separate enum variant without
accounting for it in all scenarios.

While retrospectively this seems completely unnecessary to me, it did
mean shorter error messages in case the main config file was not found.
To preserve the benefits of both approaches, explicit handling for the
`NotFound` IO error has been added when loading the main configuration
file.

0 files changed, 0 insertions, 0 deletions