PR-733704: fix tsconfig.cy.json type errors

- Remove 'cypress' from types array: Cypress ships its own types,
  not via @types/cypress — the /// <reference types="cypress" />
  in support files resolves them correctly without this entry.
- Exclude *.stories.* and *.test.* from the program: ts-loader
  does full program type-checking, pulling in stories (@storybook
  types unavailable) and Jest tests (@testing-library/jest-dom not
  in scope). These files are irrelevant to Cypress.

tsconfig.cy.json

@@ -1,12 +1,18 @@
 {
 	"extends": "./tsconfig.json",
 	"compilerOptions": {
-		"rootDir": ".",
+		"rootDir": "."
-"types": ["cypress", "node"]
 	},
 	"include": [
 		"src",
 		"cypress",
 		"src/@types"
+	],
+	"exclude": [
+		"node_modules",
+		"dist",
+		"**/*.stories.*",
+		"**/*.test.ts",
+		"**/*.test.tsx"
 	]
 }