Update JingleX L2 (9922): add faucet, explorer & fix icon

[conakryfishmaw-beep]

• Added faucet URL: https://jinglex.net/faucet
• Added explorer URL: https://jinglex.net/explorer
• Replaced broken icon (was JPEG mislabeled as PNG) with proper 512x512 PNG

[github-actions]

You successfully submitted a PR! Due to the amount of PRs coming in: we will only look at PRs that the CI is happy with. We can also not hold your hand getting the CI green - just look how others that where merged did it and RTFM. So as long as there is any CI check that reports an error - no human will look at this. You might be able to ask for some support after supporting the project - e.g. by sending funds to lists.eth. When you fixed things after a requested change - then you also need to (re-)request a review.

[conakryfishmaw-beep]

This PR updates chain 9922 (JingleX L2) only:

• Added faucet URL: https://jinglex.net/faucet
• Added explorer URL: https://jinglex.net/explorer
• Replaced broken icon (was JPEG mislabeled as PNG) with proper 512x512 PNG: ipfs://bafkreic7ebm4g7s4rfjkmmuolpdrlrthmxxcmidbwnc5kvovs5ypv4ivh4

The branch shows 11 commits ahead due to historical fork drift, but only the 2 files in this PR are intended for merge. Happy to rebase if needed.

[ligi]

resolve conflicts

[conakryfishmaw-beep]

@ligi conflicts resolved, PR is now mergeable. Ready for review when you have a moment. Thanks!

[conakryfishmaw-beep]

Added faucet URL: https://jinglex.net/faucet
Added explorer URL: https://jinglex.net/explorer
Replaced broken icon (was JPEG mislabeled as PNG) with proper 512x512 PNG: ipfs://bafkreic7ebm4g7s4rfjkmmuolpdrlrthmxxcmidbwnc5kvovs5ypv4ivh4