Block wallet integration

[nenadV91]

Summary

Adds a block wallet option in wallet modal

There are some issues with this wallet

1. If there is Metamask installed, we can't connect to this wallet.
2. If there is Tally wallet installed, we can select the provider for this wallet but we can't connect to it and I've opened an issue here

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[anxolin]

@nenadV91 for the two issues, if i understand, we don't care too much.

If another plugin is causing a collision, is not our fault. You should use the standard to select the injected wallet, and that should be good enough IMO.

I tried and it worked to connect and wrap. But I don't think the balances are being updated. At least i sent some COW and didn't update my account. Also when i did the WRAP it didn't
change my ETH balance or my WETH balance

[anxolin]

edit, i approve since it end up working.

Didn't feel like the most reliable wallet, but i manage to trade. I guess before the RPC was failing for them and took a bit to show the new balances.

[shoom3301]

Soft approve.
Haven't tested the behaviour, but the code looks good!

[elena-zh]

Hey @nenadV91 , transactions work (onchain and offchain) when connect to the wallet.
However, some issues:

1. There is no wallet icon on the Account modal/waiting modals when sign a transaction
   

2. The wallet can be installed to the Chrome and Brave browsers only I think, we need to disabled Blockwallet button for all the rest browsers and for mobile app version (we did it for Tally)

3. When TX is in progress, I see the totally red console:
   
   

4. As @anxolin noticed, balances are loaded\updated with a delay (not sure if we could fix this :)

Thanks!