add support/unit.js per cypress-io/code-coverage#472 (comment)

chrisrzhou · chrisrzhou · commit f6e496d10577 · 2021-12-30T21:41:42.000-08:00
diff --git a/cypress/support/unit.js b/cypress/support/unit.js
@@ -0,0 +1 @@
+import '@cypress/code-coverage/support.js';

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+import '@cypress/code-coverage/support.js';`