Replace logoURI with github hosted version where possible

[fleupold]

This PR changes all the URL of logos which we have stored in this repository with the corresponding rar github perma links (in case one of these non github hosted sources goes down)

Wrote a little script the checks all links are working

cat CowSwap.json | jq '.tokens[] | .logoURI' | sed 's/"//g' | while read -r logoURI; do
    echo "Checking $logoURI"
    curl -s -w "%{http_code}" "$logoURI"
done

Which actually showed that the Minerva Wallet SuperToken and FRACTION logos are no longer available (but also not yet hosted by us)

[alfetopito]

Thank you!

Working great -> https://tokenlists.org/token-list?url=https://raw.githubusercontent.com/cowprotocol/token-lists/1f252499ab2a66537352651f0877eafd1ab8ee18/src/public/CowSwap.json

The only missing image I saw is for FRACTION.

Minerva does load:

from their endpoint

"logoURI": "https://minerva.digital/i/MIVA-Token.svg"

Also noticed that the list logo itself is no longer available:

"logoURI": "https://ipfs.cow.fi/ipfs/Qme9B6jRpGtZsRFcPjHvA5T4ugFuL4c3SzWfxyMPa59AMo",

Anyway, would the script you created be useful again?
If that's the case, might be worth saving it under src/scripts