890 bug get itemsteal returns 500 internal server error if no request body is provided

[constf03]

Brief description

This PR should fix a bug with endpoint GET /item/steal where it returns internal server error if no request body is provided instead of throwing unauthorized API Error like was intended to do.

Change list

• updated src/clanInventory/item/guards/StealToken.guard.ts

  • check that request.body.steal_token or request.query.steal_token is not undefined before accessing stealToken (avoid TypeError that caused internal server error)

• updated src/__tests__/clanInventory/item/guards/AuthGuard/canActivate.test.ts

  • added a new test that checks if Unauthorized APIError is thrown if no request body is provided

[codecov-alt]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Files with missing lines	Coverage Δ
src/clanInventory/item/guards/StealToken.guard.ts	100.00% <100.00%> (ø)

... and 2 files with indirect coverage changes

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[tickBit]

Clean and good job! Approved.