fix: install.yaml needs to list commands separately to avoid removal of commands directory

[rfay]

The Issue

The current install.yaml uses commands in the project_files section.

Unfortunately, that means that when the add-on is uninstalled, it will remove everything in the commands directory.

Using directories in project_files is OK if they're directories created/maintained by the add-on, but in this case, the directory is one that is shared more generally.

How This PR Solves The Issue

List the items in commands/web individually.

Manual Testing Instructions

• Install the add-on and then remove it. It should not remove existing commands/web contents

You can install with ddev get https://github.com/rfay/ddev-drupal-contrib/tarball/20240606_explicit_commands

Automated Testing Overview

Related Issue Link(s)

Release/Deployment Notes

[rfay]

(this may be a DDEV bug, but I'm not sure I know how to fix it.)

[rfay]

It will need a new release too.