Migrate to TheGraph network

[jaybuidl]

Affected code:

uniswap-frontend/src/state/data/slice.ts

Lines 9 to 16 in 426e7f7

	const CHAIN_SUBGRAPH_URL: Record<number, string> = {
	[SupportedChainId.MAINNET]: 'https://api.thegraph.com/subgraphs/name/uniswap/uniswap-v3',
	[SupportedChainId.RINKEBY]: 'https://api.thegraph.com/subgraphs/name/uniswap/uniswap-v3',
	[SupportedChainId.ARBITRUM_ONE]: 'https://api.thegraph.com/subgraphs/name/ianlapham/uniswap-arbitrum-one',
	[SupportedChainId.OPTIMISM]: 'https://api.thegraph.com/subgraphs/name/ianlapham/uniswap-optimism',
	}

Resolves kleros/builder-baseline#22

[jaybuidl]

These endpoints are not controlled by us, the upstream repo hasn't migrated yet: Uniswap#7730

But the subgraphs already exist here: https://thegraph.com/explorer?chain=arbitrum-one&search=0xddaaed8b88ac0ccfdbfabdceba1c619391760f7f

We need to bring our own API Key