useLanguage broken after move to kolibri-common

[nucleogenesis]

Observed behavior

The useLanguages module relies on the plugin_data module, but in the kolibri-common context, the languages property is not set, so useLanguages is retruning empty values.

Note that useLanguages is only really used in the useBaseSearch module and SearchChips.

Perhaps SearchChips should also be moved into the useBaseSearch module folder in kolibri-common?

Errors and logs

…

Expected behavior

useLanguages should return a map and array of available languages

User-facing consequences

Currently, SearchChips relies on useLangauges to get the label value for a language (ie, using languageMap like languageMap['en']; // => "English".

Steps to reproduce

Filter a search by Language on the Learn > Library page.

Context

0.18 / develop branch