Remove irrelevant comments

.devcontainer/Dockerfile

@@ -1,20 +1,14 @@
 # For details, see https://github.com/devcontainers/images/tree/main/src/ruby
 FROM mcr.microsoft.com/devcontainers/ruby:1-3.2-bullseye
 
-# Install Rails
-# RUN gem install rails webdrivers
-
 ARG NODE_VERSION="20"
 RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"
 
-# [Optional] Uncomment this section to install additional OS packages.
 RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
     && apt-get -y install --no-install-recommends libicu-dev libidn11-dev ffmpeg imagemagick libpam-dev
 
-# [Optional] Uncomment this line to install additional gems.
 RUN gem install foreman
 
-# [Optional] Uncomment this line to install global node packages.
 RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && corepack enable" 2>&1
 
 COPY welcome-message.txt /usr/local/etc/vscode-dev-containers/first-run-notice.txt

.devcontainer/post-create.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 
-set -e # Fail the whole script on first error
+# Fail the whole script on first error
+set -ev
 
 # Fetch Ruby gem dependencies
 bundle config path 'vendor/bundle'