Add support for manage multiple nodes

[tmm360]

Currently only a single node is supported at time. This would be required also for #58

[vojtechsimetka]

Thanks @tmm360 this is an issue I wanted to make as well. The idea would be to have a state provider for each Bee node (#40 is the first step) and as an input into this context provider you could have the API and debug API url's.

As for #58, this button is per one node so it can even be implemented now. Simple filter on accounting.filter(r => r.uncashed.toBigNumber.isGreaterThan(0)) gives you list of all peers which have some uncashed balance. Then the Cash all button just triggers cashout on each one of these peers.

Accounting type:

bee-dashboard/src/hooks/accounting.ts

Lines 7 to 23 in 73702bf

	interface UseAccountingHook {
	isLoading: boolean
	isLoadingUncashed: boolean
	error: Error | null
	totalsent: Token
	totalreceived: Token
	accounting: Accounting[] | null
	}
	export interface Accounting {
	peer: string
	uncashedAmount: Token
	balance: Token
	received: Token
	sent: Token
	total: Token
	}

accounting array: https://github.com/ethersphere/bee-dashboard/blob/master/src/pages/accounting/index.tsx#L37

[vojtechsimetka]

closing in favour of #135 which is slightly clearer.