🤯 Refactor add new proposal tests (#4473)

* Reduce fee re-calculation in `AddNewProposalModal`

* Fix the "warningAccepted" logic

* Fix the proposal `WarningModal`

* Test the signal proposal flow

* Add "General parameters" tests

* Add "Funding Request" and "Set Referral Cut" tests

* Fix race condition during form validation

* Fix incomplete tests

* Use one story per proposal type

* Add the "Decrease Working Group Lead Stake" test

* Add "Terminate Working Group Lead" test

* Don't initialize number inputs with a 0

* Add Create Working Group Lead Opening test

* Add the Set Working Group Lead Reward test

* Add the Set Max Validator Count test

* Add the Cancel Working Group Lead Opening test

* Add the Set Council Budget Increment test

* Add the Set Councilor Reward test

* Add the Set Membership Lead Invitation Quota test

* Add the Fill Working Group Lead Opening test

* Add the Set Initial Invitation Count test

* Add the Set Initial Invitation Balance test

* Add the Set Membership Price test

* Add the Update Working Group Budget test

* Add the Runtime Upgrade test

* Complete the AddNewProposalHappy test

* Test not enough funds case

* Add transaction failure tests

* Remove the "UI: AddNewProposalModal" test suite

* Fix tests failing in Playwright

* Simplify expected tx parameters amounts

* Fix failing "unit" tests

packages/ui/.storybook/preview.tsx

@@ -1,4 +1,5 @@
 import { Decorator } from '@storybook/react'
+import { configure } from '@storybook/testing-library'
 import React from 'react'
 import { I18nextProvider } from 'react-i18next'
 import { useForm, FormProvider } from 'react-hook-form'
@@ -15,6 +16,8 @@ import { TransactionStatusProvider } from '../src/common/providers/transactionSt
 import { MockProvidersDecorator, MockRouterDecorator } from '../src/mocks/providers'
 import { i18next } from '../src/services/i18n'
 
+configure({ testIdAttribute: 'id' })
+
 const stylesWrapperDecorator: Decorator = (Story) => (
  <>
  <GlobalStyle />