feat: added file to fetch data from the subgraph API. Package.json updated with axios and ts-node.

[RafaDSan]

closes #153

@Guboehm Made the subgraph-queries.ts file using axios to fetch data from the subgraph API.

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⚠️ GitGuardian has uncovered 3 secrets following the scan of your pull request.

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🔎 Detected hardcoded secrets in your pull request

GitGuardian id	Secret	Commit	Filename
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-	Generic High Entropy Secret	6d05195	.env.sample	View secret

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[0xneves]

I'm requesting a change to add the auth keys and URL path into the environment file. Fetch them when running the script.

[RafaDSan]

@0xneves Changes made as suggested!

• Added the .env-sample file to be fetched by the subgraph-queries.ts file
• endpoint URL and authorization key are now hidden by the .env
• package.json updated to accept the dotenv dependencies.

The commit 6d05195 which adds an .env file to the frontend closes #157

Result:

Legend: Queries fetched when running the command node subgraph-queries.ts. Obs: Must remove the .sample from .env