Add request localization settings to the configured one

[hishamco]

Fixes #14834

[hishamco]

@giannik you could test this PR to ensure it resolves the issue

[giannik]

@hishamco yes this fixes it.
thanks

[sebastienros]

Bonus point if you can add a functional test.

[bashuss]

Could this change have broken my frontend language picker? After update to 1.8.2 from 1.7.x, a necessary View cannot be found anymore. ContentCulturePickerContainer.liquid was used before (for rendering ), but this seems to have changed to ContentCulturePicker.liquid - at least, that is the one, which is missing.
The Culture Picker is part of the main-menu: LinkMenuItem with Text, no link, but box checked "Is CulturePicker"

Wenn I create ContentCulturePicker.liquid and copy the code from the other template, the page renders without exception, the picker shows, but the dropdown is empty, shows no languages.

[Piedone]

That's more likely due to the various navbar changes: https://docs.orchardcore.net/en/latest/docs/releases/1.8.0/#navbar