This PR fixes the issue where mapped specifiers in a workspace member
would never be found. Only mapped paths from the workspace root would
resolve.
This was caused by always passing the workspace root url to the import
map resolver instead of the workspace member one.
Fixes https://github.com/denoland/deno/issues/26138
Fixes https://github.com/denoland/fresh/issues/2615
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Signed-off-by: Marvin Hagemeister <marvinhagemeister50@gmail.com>
Co-authored-by: David Sherret <dsherret@users.noreply.github.com>
