Fixes #4425 so tests work after Docker setup

.devcontainer/Dockerfile

@@ -1,5 +1,8 @@
 # Installs Ruby 3.2.2. When human-essentials moves to a newer version of ruby,
 # it will be more efficient to change the image.
 # See https://github.com/devcontainers/images/blob/main/src/ruby/history/
-FROM mcr.microsoft.com/devcontainers/ruby:dev-3.2-buster
+FROM mcr.microsoft.com/devcontainers/ruby:dev-3.2
 RUN apt -y update && apt install -y vim curl gpg postgresql postgresql-contrib
+RUN cd /tmp
+RUN wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb 
+RUN apt install -y ./google-chrome-stable_current_amd64.deb 

.devcontainer/devcontainer.json

@@ -16,5 +16,10 @@
     }
   },
 
+  // DOCKER env variable passed to Cuprite to enable --no-sandbox so Chrome can run in Docker
+  "remoteEnv": {
+    "DOCKER": "true"
+  },
+
   "postCreateCommand": ".devcontainer/post-create.sh"
  }