fix: correct upstream repository

Dockerfile.photovoter-frontend

@@ -6,7 +6,7 @@ ARG DOMAIN='gman.me'
 RUN apk add --no-cache git
 
 # Pull frontend
-RUN git clone --depth=1 https://git.iamonlyherefortheicecream.ml/g/photovoter-front.git /srv && \
+RUN git clone --depth=1 https://git.iamonlyherefortheicecream.ml/DIWHY/photovoter-front.git /srv && \
     rm -rf /srv/.git /srv/.gitignore
 
 # Clean up