Add Coin Wallet to wallets sections

[nikashitsa]

This PR adds Coin Wallet to wallets sections with better resolution logo.

Coin Wallet still works and alive.
Already listed at bitcoin.org (android, ios, web)

[merc1er]

I just tested the wallet and found the following:

• does not support 0-conf
• the fees are way too high (I sent myself 10 cents and I was asked to pay a 20 cent fee to send the funds back)
• the 'max' function doesn't seem to work

Other than this, the experience was good and it's nice not to have to install anything and be able to use BCH in the browser :)

[nikashitsa]

@merc1er please have look at last version (v2.17.0) 👀
Now it supports 0-conf, 'max' function is fixed and fee is much lower for BCH.

[merc1er]

Fee still is about 10 times the BCH network fee.
The 'max' button doesn't work on my end (see screenshot).

[nikashitsa]

Ok. Now I set 1 sat/byte for fee (10 sat/byte was before).
The "Max" button shown you 0 because 0.00002054 - 0.0000226 (fee) = -0.00000206.
Now all should work fine (just refresh your page). Perhaps, later we will add dynamic fees for BCH also.

[nikashitsa]

@merc1er how it's going? Meanwhile, we've added desktop apps for all platforms (Windows, macOS, Linux).

[merc1er]

I reviewed the web wallet and iOS app and I really enjoyed the user experience!!! Fast and easy.

[merc1er]

@Mengerian @jasonbcox what do you think? Do you want to try the Android and Windows versions? (I don't have any of these OS with me)

I'm thinking this web wallet would be ideal to show people BCH without having to download anything on their phone during meetups for example.