feat(cypress): use cy.session

Also align repo closer to `create-vue` template and improve cypress integration

cypress/e2e/tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "extends": "@vue/tsconfig/tsconfig.web.json",
+  "include": ["./**/*", "../support/**/*", "../factories/**/*"],
+  "compilerOptions": {
+    "baseUrl": ".",
+    "isolatedModules": false,
+    "target": "ES2015",
+    "lib": ["ESNext", "dom"],
+    "types": ["cypress"]
+  }
+}