Included scss compiling using sass in the docker image

Moonlight/Dockerfile

@@ -14,6 +14,16 @@ COPY . .
 WORKDIR "/src/Moonlight"
 RUN dotnet build "Moonlight.csproj" -c $BUILD_CONFIGURATION -o /app/build
 
+# Install sass
+RUN apt-get update
+RUN apt-get install wget -y
+RUN cat /etc/os-release
+RUN wget -O /tmp/sass.tar.gz https://github.com/sass/dart-sass/releases/download/1.77.5/dart-sass-1.77.5-linux-x64.tar.gz
+RUN tar -xf /tmp/sass.tar.gz -C /tmp
+RUN chmod +x /tmp/dart-sass/sass
+RUN mkdir -p /app/build/Assets/Core/css/
+RUN /tmp/dart-sass/sass /src/Moonlight/Styles/style.scss /app/build/Assets/Core/css/theme.css
+
 FROM build AS publish
 ARG BUILD_CONFIGURATION=Release
 RUN dotnet publish "Moonlight.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false