Need to implement these steps:

• step deploy: erc20, count(erc20) == cout(transactions)
• step create_pair:

tokenA.approve(router2)
tokenB.approve(router2)
router2.addliquidity(tokenA, tokenB, sum, to)
		- cretePair
		- tokenA.call(transferFrom, router2, pair, sum)
		- tokenB.call(transferFrom, router2, pair, sum)
		- pair.mint(to)

• step swap: pair.swap(sum1, sum2, to)

Currently, users have to manually import devnet/testnet ERC20 tokens to theirs metamask wallet. This approach is quite tricky: user have to find out required token address, copy it, setup metamask an so on.
It is suggested to implement additional UI element (button or token-list table) on neonfaucet which will automatically import selected token into metamask.

1. Move Get Tokens page from NeonSwap to neon-faucet-ui
2. Use the entire Get Tokens page as a template for Faucet UI, or create a new one based on NeonSwap design
3. Change Faucet documentation here https://docs.neon-labs.org/docs/developing/utilities/faucet
4. Remove NeonSwap from docs here https://docs.neon-labs.org/docs/developing/utilities/neonswap
5. Ask MoraSwap to change a link to Faucet

Add support for ERC20 tokens airdrop:

• Add drop-down list with available tokens.
• Use request_erc20_list method (see neonlabsorg/neon-faucet#11) to retrieve addresses of tokens available on faucet.
• Use https://github.com/neonlabsorg/token-list/blob/main/tokenlist.json file to determine token names and token symbols to construct drop-down list: filter out tokens which have supported 'chainId' (245022926 for devnet) and 'address'
• Add NEON token by default, use old logic and request to drop NEON tokens.
• Client should select token from list before pressing Get Tokens button.
• Use faucet method request_erc20 to airdrop selected ERC20 token:

{ 'wallet': <metamask_addr>, 'token_addr': <address_of_selected_token>, 'amount': <amount_selected_by_user> }

STR:
Click on the 'Select a token' link, a drop-down with token names appears.
Note: it's only possible until MetaMask is connected to our network

Expected result:
I'm able to navigate the whole list, from the top to the bottom and in the backward direction.

Actual result
I scroll through the dropping list, token names are literally jumping and disappearing on a small increase of scroll speed.
See the video attached

.

1. "TEST AIRDROP" button must be in center and another color for disabled state
   

2. We need add a notice about limits, because if i enter more 1000 we disable button test airdrop only.

3. For ERC20 limit - 100 tokens but we don't handle this

4. Bad UX on loading. Loading icon is shown in top of page and all content scroll down. We need to use loader in button after click
   

5. If i try receive twice neon tokens (without wait 1 minute) I receive error: "Request seems to be blocked by CORS policy. Response isn't avaliable" and response 429 code - we need to change error message

6. Time limit doesn't work for erc20

7. Add disclaimer about test tokens

Stop NeonSwap and deploy neon-faucet-ui

patch ethereum-waffle to wait for receipts