Pontoon: Update Romansh Sursilvan (rm-sursilv) localization of Common Voice
Pontoon: Update Romansh Sursilvan (rm-sursilv) localization of Common Voice

Localization authors:
- gabriela.holderegger <gabriela.holderegger@rumantsch.ch>
- Sievi Lombriser <sievilombriser@outlook.com>
- daniel.telli <daniel.telli@rumantsch.ch>

gozer/voice-web,gozer/voice-web,common-voice/common-voice,common-voice/common-voice,gozer/voice-web,common-voice/common-voice,gozer/voice-web,gozer/voice-web,gozer/voice-web,common-voice/common-voice,gozer/voice-web