Explorer: enhance search capability for more types

[bwann52]

Search accounts, transactions, smart contracts, NFTs, tokens by address

[todd-mystenlabs]

@Andrew47 @stella3d @Jibz1 @bwann52 - we do have a search bar right now. What makes up this task here?

[apburnie]

@todd-mystenlabs --> the search bar enables the user to search for:

• Accounts: https://explorer-demo.sui.io/addresses/09818aac3edf9cf9b006b70c36e7241768b26386
• NFTs and tokens by address: https://explorer-demo.sui.io/objects/363124FB1BE19377C39C4356865A8C8430C6AE85

But not:

• Transactions
• Smart Contracts

Regarding transactions, @stella3d will need to approve the Preview Card PR #1155 and update the mock transaction data PR #1269. @Jibz1 can then start on implementing the transactions functionality.