ps1: fix syntax error

shared/work/default.nix

@@ -81,6 +81,7 @@
         mj_ps1_extra() {
             if [[ $PWD =~ $HOME/dev ]]; then
                 kubectl config view --minify -o jsonpath={.current-context}:{..namespace}
+            fi
         }
         export PS1=$(echo "$PS1" | sed 's;\\n;$(mj_ps1_extra);')
       '';