Start tracking events in Plausible Analytics

[jamiehewitt15]

Dependant on: https://github.com/oceanprotocol/team-sailfish/issues/21

Since we decided that we can move forward with Plausible, we should set up the events in df-web.

Steps:

• [ ] Decide which events to track
• [ ] Decide the user journeys that we want to follow
• [ ] Add the tracking tags within the frontend
• [ ] All basic end-to-end funnels have been setup and delivered

[jamiehewitt15]

So I'd suggest that to start with, we track these user journeys:

• Locking Ocean
• Allocating Ocean

There are also a few extra events we can track that might be helpful:

• Connecting wallet
• Claiming rewards