Add cypress e2e tests for emulator

[codingone21]

Testing in Emulator

Scenarios that do not interact with kitty items:

• Visits header buttons
• Logs in as admin
• Creates new account

Scenarios that involve minting kitty items:

• Mints an item as from a service account + remove from store
• Mints an item + funds an account + purchases item from the funded account
• Log in and out from user accounts handled in 'beforeEach' and 'afterEach'

Activities Coverage

Accounts

• Routing between header buttons
• Logging in/out
• Creating account

KI

• Minting
• Funding
• Removing from Store
• Purchasing

Testing in Testnet

Scenarios that do not require calling external apps:

• Visits header buttons
• Logs in as admin + mint an item
• Connects to Blocto wallet with testnet account

Activities Coverage

• Routing between header buttons
• Connecting to wallet
• Logging in/out - This is partially covered by connecting to wallet
• Minting KI

Activities Requiring External Services

Next Issue: #289

• Funding - needs to use faucet (https://testnet-faucet.onflow.org/fund-account)\
• Purchasing, Listing - needs funding first!

Next Steps

• Cover Testnet scenarios that need external services (Issue: Cover testnet scenarios that need external services #289)
• Configure github actions to run both Emulator & Testnet tests in separate containers (Issue: Cover testnet scenarios that need external services #289)
• Add cypress tags to FCL repos(Issue: Add Cypress tags to FCL repos #291)
• Setup Cypress dashboard then integrate with Github Actions (Issue: Setup Cypress dashboard then integrate with Github Actions #292)

[gpavlov2016]

I think it's better to use dashes instead spaced to separate words in a single-value attributes.
For example "header mint" -> "header-mint"
With spaces there is some ambiguity around whether it's one value or an array of 2 values