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Use the ESM directory in the Nuxt config #2013

Job	Run time
test (ubuntu-latest, unit)	2m 26s
test (ubuntu-latest, 2/2)	2m 17s
build and typecheck (ubuntu-latest)	1m 56s
test (ubuntu-latest, 1/2)	3m 36s
live-e2e	0s
done	4s
	10m 19s