examples/graphql: Adds examples.

[chris-ramon]

Details

• Closes: {*}: Add examples/graphql/* queries & mutations. #15.
• examples/graphql: adds examples.

Test Plan

✔️ Examples queries & mutations tested via GraphQL Playground:

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (5549446) to head (74f798d).
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Additional details and impacted files

@@            Coverage Diff            @@
##              main       #17   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            4         4           
  Lines           98        98           
=========================================
  Hits            98        98           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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[chris-ramon]

LGTM 👍 🚢