feat: export react context, return wallet session on wallet connect and break circular deps

[tomiiide]

What does this PR do?

This PR does a couple of things:

1. Exports SolanaClientContext for external use cases
2. Returns the WalletSession object after a connector connects.
3. Breaks the circular dependeciess in the repo

Why was it implemented this way?

Exporting SolanaClientContext

We needed this in a widget use case. The widget has it's internal wallet management. However, we want our partners to be able bring their own wallet management solution and the widget to use the external wallet management when available.
We do this by checking if there is an existing SolanaClientContext in the tree, and reusing it if there is, else, we create a new context.

Returning the WalletSession after connection

Although there is a useSession hook to fetch when the session. In our use case, we have a synchronous flow where onConnect, we show the user he a connecting modal and after connection, our internal state is updated, and the we close the modal. Doing this with the hook would work but would not be a linear flow.

Break circular dependencies in the repo.

After making the above updates, I discovered there were circular dependencies in the repo.

1. I broke out the src/types.ts files into smaller types.ts files for each module / folder.
2. I added madge to the devDependencies to help check for circular dependencies.

[GuiBibeau]

@tomiiide I've updated a lot of things and will cut the first minor release. Do you want to review anything in this PR before i review or good to go?

[tomiiide]

@GuiBibeau Since there are no merge conflicts, I think it's good to go.
However, I would do another to look at your new changes, and see how it affects this PR.

[GuiBibeau]

@tomiiide perfect. I'm not planning any changes until monday on the react codebase after a bit of testing round by others. Hit me up once you want me to review/merge.

the only changes i will work on until then will be repo management stuff:

• issue templates
• PR templates
• security audit and automation