Add positron server and bump earthaccess to 0.18

.gitignore

@@ -0,0 +1,2 @@
+# License files
+*.lic

ci/Dockerfile

@@ -2,9 +2,17 @@ FROM pangeo/base-image:2024.08.18
 # build file for pangeo images
 RUN conda init zsh && conda init bash
 
+USER root
+COPY --chmod=755 install-positron.sh ./
+RUN ./install-positron.sh
+
+# To test locally, put the license file in ci/positron-license.lic and uncomment 
+# the line below to copy it into the image. Do not commit the license file to git.
+# COPY positron-license.lic /opt/positron-server/resources/activation/linux/x86_64/license.lic
+
 USER ${NB_USER}
 
-RUN chmod +x install-vscode-ext.sh && ./install-vscode-ext.sh vscode-extensions.txt
+COPY --chmod=755 install-vscode-ext.sh vscode-extensions.txt ./
+RUN ./install-vscode-ext.sh vscode-extensions.txt
 
 ENV JUPYTERHUB_HTTP_REFERER=https://openscapes.2i2c.cloud/
-