feat(cypress): use cy.session

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

cypress/factories/team_member.ts

@@ -1,5 +1,4 @@
 import {Factory} from '../support/factory'
-import {formatISO} from 'date-fns'
 
 export class TeamMemberFactory extends Factory {
     static table = 'team_members'
@@ -9,7 +8,7 @@ export class TeamMemberFactory extends Factory {
             team_id: 1,
             user_id: 1,
             admin: false,
-            created: formatISO(new Date()),
+            created: new Date().toISOString(),
         }
     }
 }