[APP-549] Language controls for Whats Hot (#563)

* Add a content-language preference control

* Update whats hot to only show the selected languages and to refresh on lang pref changes

* Fix lint

* Fix tests

* Add missing accessibility role

src/state/models/ui/shell.ts

@@ -85,6 +85,10 @@ export interface ContentFilteringSettingsModal {
   name: 'content-filtering-settings'
 }
 
+export interface ContentLanguagesSettingsModal {
+  name: 'content-languages-settings'
+}
+
 export type Modal =
   // Account
   | AddAppPasswordModal
@@ -94,6 +98,7 @@ export type Modal =
 
   // Curation
   | ContentFilteringSettingsModal
+  | ContentLanguagesSettingsModal
 
   // Reporting
   | ReportAccountModal