Bid on Corgi

[zahhar]

FE:

• [x] Bidding possible only from Corgi page
• [x] Owner cannot bid on its own Corgi, only view list of last bidders
• [x] Others: must be logged in to Bid
• [x] Input field for bid amount (design to be provided, default value is last bid) and confirmation via Wallet
• [x] Highlight me in the bidders list
• [x] Bidders list ordered by timestamp, last bidders on top (they come in the same order from SmartContract)
• [x] Show remaining timer countdown until auction ends

SmartContract:

• [x] Check that Bidder != Owner
• [x] Check that new Bid is bigger then previous one
• [x] Update Bidders list with new timestamp and amount