[Feature]: Integrate Wallet Connection

[sunguru98]

As a developer, I would like to have the users be able to connect to their Ethereum wallet.

1. Create Connect Button and attach it to Header
2. Clicking on it should open the web3-modal, where a user can select their preferred wallet
3. User's wallet address should be visible once connected on that Button and should now redirect to their profile page if clicked.
4. Subsequent app reloads should make sure to connect with the user's wallet automatically.
5. Able to disconnect a wallet (I'm not sure in terms of design whether to have it as a dropdown beneath the user address button or to just have it adjacent)

Design Screenshots:

Empty State

Connected State

[xivanc]

in addition we would need to access wallet related data (like user address) across all components (to access onchain data), I propose we should use react context for this