warning: invalid case style for constant 'WriteScreenAction' [readability-identifier-naming]

```suggestion
            const auto writeScreenAction = std::get<contour::actions::WriteScreen>(_action);
            name = fmt::format("{} chars: '{}'", writeScreenAction, writeScreenAction.chars);
```

warning: method 'format' can be made static [readability-convert-member-functions-to-static]

```suggestion
gs);static 
```

warning: parameter name 'v' is too short, expected at least 3 characters [readability-identifier-length]
```cpp
t& v)
   ^
```