feat: add starship to devcontainer

Signed-off-by: Devin Buhl <devin@buhl.casa>

.devcontainer/postCreateCommand.sh

@@ -1,5 +1,15 @@
 #!/usr/bin/env bash
 
+# Hook direnv into fish
+cat << EOF > ~/.config/fish/conf.d/direnv.fish
+direnv hook fish | source
+EOF
+
+# Hook starship into fish
+cat << EOF > ~/.config/fish/conf.d/starship.fish
+starship init fish | source
+EOF
+
 # Export the direnv environment variables
 task workstation:direnv