fix Dockerfile for devcontainer

.devcontainer/Dockerfile

@@ -33,7 +33,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update \
    && apt-get -y install --no-install-recommends git-lfs \
       # for Cypress
-      libgtk2.0-0 libgtk-3-0 libgbm-dev libnotify-dev libgconf-2-4 libnss3 libxss1 libasound2 libxtst6 xauth xvfb fonts-noto-cjk
+      libgtk2.0-0 libgtk-3-0 libgbm-dev libnotify-dev libgconf-2-4 libnss3 libxss1 libasound2 libxtst6 xauth xvfb fonts-noto-cjk \
 
    # Clean up
    && apt-get autoremove -y \