Shared pagination: label instead of i18n key as parameter

[mmd-osm]

Pass translated label to shared pagination instead of i18n key.

This reduces the number of reported issues when running bundle exec i18n-tasks unused

Apparently, there are lots of pending PR out there that would conflict with this change: #4734, #4733, #4729, #4710
What's the status here? Which one of these alternatives will make it in the end?

[AntonKhorev]

In #4734 etc I need four different labels, so instead I pass the scope and append .newest / .newer / .older / .oldest. And what if I need even more strings, for example, a different tooltip string for each button? Do you propose to pass all of them separately?

[mmd-osm]

4 strings might be still ok, for more strings it would be good to have an alternative approach.

[AntonKhorev]

If the goal is to make i18n-tasks unused stop complaining we can create a scope just for pagination strings and tell i18n-tasks to ignore it.

[mmd-osm]

Yes, I think that would be the better approach. Passing lots of strings doesn’t scale well.