Check main thread via Thread.isMainThread (pointfreeco#823)

* Check main thread via Thread.isMainThread

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Fix macOS <11 builds with Xcode 13 RC (pointfreeco#797)

* Fix macOS <11 builds with Xcode 13 RC

Fixes pointfreeco#796.

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* Update Tests/ComposableArchitectureTests/ViewStoreTests.swift

Co-authored-by: Brandon Williams <135203+mbrandonw@users.noreply.github.com>

Co-authored-by: Brandon Williams <135203+mbrandonw@users.noreply.github.com>

Conform BindableState to CustomDebugStringConvertible (pointfreeco#777)

This ensures that bindable state properties are displayed in a useful way when using
`.dump` snapshot tests on your app state.

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Use proportional diffing for TestStore failures (pointfreeco#742)

* Use proportional diffing for TestStore failures

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Use Custom Dump (pointfreeco#736)

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* fix

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* Model Tic-Tac-Toe board using proper type

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Co-authored-by: Brandon Williams <mbrandonw@hey.com>

Add `Effect.task` for wrapping units of async/await work (pointfreeco…

…#715)

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* docs

* clean up

* Remove bad test

Co-authored-by: Brandon Williams <mbrandonw@hey.com>

Run swift-format

Buffered Actions Failing Test (pointfreeco#662)

* Adds a failing test demonstrating pointfreeco#661

* Don't write to state till `isSending` is false

* Update StoreTests.swift

* Update StoreTests.swift

Co-authored-by: Stephen Celis <stephen@stephencelis.com>
Co-authored-by: Stephen Celis <stephen.celis@gmail.com>