seller locked funds is not correct in Finance Dashboard

[levalleux-ludo]

completed exchanges should be excluded when coputing the locked funds value

Fix should be done in core-components/subgraph package
Proposed fix:

• add exchange.finalizedDate = event.block.timestamp; in packages\subgraph\src\mappings\exchange-handler.ts line 214 (just after setting exchange.completedDate

E2e test should be added to check the fix:

• create a seller
• seller creates an offer with quantity >= 5, price = 1, sellerDeposit = 0.1, buyerCancellationPenalty = 0.01
• seller deposit funds >= 0.5 for sellerDeposit
• create a buyer
• buyer commits 5 times to the offer
• buyer cancel exchange Ex1
• buyer redeem exchange Ex2
• buyer redeem exchange Ex3 and raise a dispute
• buyer redeem exchange Ex4 and complete it
• seller revoke exchange Ex5
• check seller available funds: 0.01 (exchange Ex1) + 1 (exchange Ex4) - 0.1 (exchange Ex5) = 0.91
• check seller locked funds (use the same logic than the dApp src\components\seller\common\useOffersBacked.ts l.74): 0.2 (exchanges Ex2, Ex3)
• check buyer available funds: 0.1 (exchange Ex5)

[albertfolch-redeemeum]

check seller available funds: 1.01 (exchange Ex1) + (1.1 -0.005(protocol fee))(exchange Ex4) - 0 (exchange Ex5, seller payout is 0) = 2.105

check buyer available funds: 1.1 (exchange Ex5)

[levalleux-ludo]

Exchange 1 is cancelled by the buyer. Item price goes back to the buyer, minus the cancellation penalty that goes to the seller.
OK for adding the protocol fee for Exchange 4

What about?

• seller available funds: 0.5 (initial deposit) + 0.01 (exchange Ex1) - 0.1 (locked Ex2) - 0.1 (locked Ex3) + (1-0.005(protocol fee))(exchange Ex4) - 0.1 (penalty Ex5) = 1.205
• seller locked funds: 0.1 (locked Ex2) + 0.1 (locked Ex3) = 0.2
• buyer locked funds: 1 (Ex2) + 1 (Ex3) = 2
• buyer available funds: (1-0.01) (Ex1) + (1+0.1) (exchange Ex5) = 2.09