Add more `.editorconfig` properties #25

Job	Run time
build_and_test (04-tdd-in-the-real-world)	5m 27s
build_and_test (05-fixtures)	7m 31s
build_and_test (06-testing-static-swiftui-views)	6m 43s
build_and_test (07-testing-dynamic-swiftui-views)	7m 50s
build_and_test (08-stub)	5m 11s
build_and_test (09-json-decoding)	5m 16s
build_and_test (10-networking)	7m 30s
build_and_test (11-dependency-injection-with-environment-object)	2m 45s
build_and_test (12-spy)	4m 32s
build_and_test (13-testing-view-presentation)	7m 48s
build_and_test (14-fixing-bugs-and-changing-code)	5m 34s
build_and_test (15-fake-and-dummy)	7m 49s
build_and_test (17-appendix-b-nimble-only)	6m 50s
build_and_test (18-appendix-b-quick-and-nimble)	7m 49s
build_and_test (19-appendix-c-uikit)	7m 48s
	1h 36m 23s

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