fix dockerfile

.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-FROM FROM mcr.microsoft.com/devcontainers/universal:2
+FROM mcr.microsoft.com/devcontainers/universal:2
 
 # Copy environment.yml (if found) to a temp location so we update the environment. Also
 # copy "noop.txt" so the COPY instruction does not fail if no environment.yml exists.