Recommended finding from user testing in T192891

Problem

During user testing, it was noted that ability to show/hide specific languages in card types was not very discoverable when only accessed via the separate 'Customize the feed' screen.

Proposed solution

On language-dependent cards in the Explore feed itself, add an additional option on the overflow menu to "Edit card languages":

Tapping on this option will open the relevant card language selection dialog directly on the Explore feed view.

Related to: T181153: Add 'smart' prompts to customize feed based on user behavior

Steps to QA

Pre-conditions: Ensure there is more than 1 app language set, eg. EN & DE.

1. Open the Explore feed and tap on the overflow of an language-dependent card, eg., Trending. It is expected that there should be an extra option on this card to "Edit card languages".
2. Tap on the option to "Edit card languages". It is expected the dialog will appeaser allowing the user to select which app languages the user has set (in this case EN & DE) will be shown for that card.
3. Uncheck one of the languages for that card and close the dialog. It is expected the feed will refresh with the card no longer showing for the unchecked language.
4. Go to 'Customize the feed'. It is expected the language bar for that card will also show the language as being 'turned off' for that card (the language icon will show as grey text inside an outline container instead of a white text in a solid container).