add Reactive Network Lasna testnet & deprecate Reactive Network Kopli

[daniil-parsiq]

• Added Reactive Lasna Testnet
• Marked Reactive Kopli Testnet as deprecated
• Gradle build successful 🟢
• Prettier 🟢

[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.