These languages had translation files but were missing from the
settings UI. Adds appSettings_languageRu and appSettings_languageUk
strings and corresponding RadioListTile entries.
Fixes missing languages in app settings.
- Enhanced pluralization rules for "hops" in various contexts to better reflect Russian grammar.
- Added new localization strings for chat link handling, including error messages and confirmation prompts.
- Ensured consistency in the use of plural forms across the application.