feat: added Romanian strings (#987)

## Summary

* **What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)

To add upport for a romanian language user interface.

* **What changes are included?**

A new i18n file `romanian.yml`

## Additional Context

* Add any other information that might be helpful for the reviewer
(e.g., performance implications, potential risks,
  specific areas to focus on).

---

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lib/I18n/I18nStrings.h

@@ -15,5 +15,6 @@ extern const char* const STRINGS_CZ[];
 extern const char* const STRINGS_PO[];
 extern const char* const STRINGS_RU[];
 extern const char* const STRINGS_SV[];
+extern const char* const STRINGS_RO[];
 
 }  // namespace i18n_strings