Indicate if setting has a language-specific value

[joyceerhl]

Testing #145588

Introduce an indicator when a setting has language specific value when viewing that setting in non-language specific scope.

For example

1. Filter to @lang:css
2. Change a setting
3. Remove filter
4. Search for that setting
5. There's no indication that the setting's value has changed for the current scope ('User') and also there is a language overriding this value.

Also same if the setting has a different value for other languages contributed in defaults

[rzhao271]

The lack of a modified filter is intentional, but imo there should at least be text saying that the setting has been overridden for some languages.
Adding to next milestone.

[sandy081]

@rzhao271 and myself discussed on this and decided to introduce some minimal UI when the setting has language specific values when shown in non-language specific scope. UI includes text as follows:

Other languages have overridden this setting.

languages shall be rendered as link, clicking on it shows the list of languages overriding the setting. Selecting the language shall apply language and setting filter in the search box.

[heartacker]

hi all, I think that will be great to show the language-specific value-item if there are.