Support injection for generators.

[alexanderlazarev0]

Resolves #186

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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

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Files with missing lines	Coverage Δ
tests/test_injection.py	100.00% <100.00%> (ø)
that_depends/injection.py	100.00% <100.00%> (ø)

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[Copilot]

Pull Request Overview

This PR resolves #186 by adding support for dependency injection into generator functions (both synchronous and asynchronous) and by enhancing error handling for context resources. Key changes include:

• Adding specialized injector functions for sync and async generators in injection.py.
• Expanding tests to cover various generator injection scenarios and error conditions.
• Updating documentation and navigation to reflect the new generator injection support.

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
that_depends/injection.py	Introduces ContextProviderError and new injection paths for generator functions.
tests/test_injection.py	Adds new tests for sync/async generator injection and context resource error handling.
mkdocs.yml	Updates navigation by adding generator injection docs and rearranging duplicate entries.
docs/introduction/generator-injection.md	Provides detailed documentation on using dependency injection with generators.
docs/integrations/fastapi.md	Minor grammar adjustment in FastAPI integration documentation.
docs/introduction/application-settings.md	Removes outdated application settings doc.