tests

fix: add fallback template when error-page.html fails to load #76

Job	Run time
yarn-lockfile-check / lockfile-check	13s
linux-unit-tests / determine-node-versions	7s
linux-unit-tests / prevent-typescript-dependency / prevent-typescript-dependency	26s
linux-unit-tests / linux-unit-tests (22)	1m 9s
linux-unit-tests / linux-unit-tests (20)	1m 15s
linux-unit-tests / linux-unit-tests (24.11.1)	1m 9s
windows-unit-tests / determine-node-versions	8s
nuts (windows-latest) / yarn test:nuts	6m 33s
nuts (ubuntu-latest) / yarn test:nuts	51s
windows-unit-tests / windows-unit-tests (22)	3m 18s
windows-unit-tests / windows-unit-tests (20)	3m 0s
windows-unit-tests / windows-unit-tests (24.11.1)	3m 42s
	21m 51s

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