Proposed rule: Don't use `Locale.getDefault()` in a `@Composable` context

[yogurtearl]

Add a rule for something along the lines of:

"Don't call Locale.getDefault() in a @Composable context, use LocalConfiguration.current.locales instead."

Calling Locale.getDefault() won't recompose if the locale changes (Configuration change),
Also, LocalConfiguration.current.locales works better for previews and tests.

[ZacSweers]

PR welcome!