Change links on the Activity pass section

[0xdeval]

What to do?

We need to change links to Swapscout / Revokescout to Essential dapps, so the final text should be:

Use Blockscout tools like Essential dapps, or interact with smart contracts to start earning Merits.

Copies should be replaced on the Merits website as well as on the Blockscout UI

[enochakinbode]

i can work on this @tom2drum