Enhance visibility of verified contracts: Introducing green checkmarks for quick identification

[vladbochok]

🌟 Feature Request

📝 Description

Currently, both verified and non-verified contracts are shown by the block explorer the same.

User should click on "contract" page to see whether a contract is verified or not.

Etherscan shows a green checkmark in case a contract is verified, so an user can know that before clicking on "contract" page.

🤔 Rationale

While looking into the contract I want to know in advance whether contract is verified, otherwise I wouldn't spend time on clicking "contract" page to check raw bytecode. This feature is also make user experience more similar to Etherscan one, that is beneficial for users that used to L1 block explorer.