Issue-72: Activate all installed plugins

All plugins installed as part of https://github.com/alleyinteractive/create-wordpress-project/issues/47 are now automatically activated using the wp-plugin-loader. The plugin activation process has been refined, including the following updates:

Activation is now automatic for all installed plugins.
Variable names have been corrected to enhance code clarity.
Merged the latest changes from the 'develop' branch to ensure compatibility.
Debugging code has been added and subsequently refined.
The installed_plugins variable is now passed by reference for better memory management.
Filenames related to plugins have been fixed to prevent issues during activation.
Exclusions have been added to prevent the activation of specific plugins like wp mail smtp.
Checks have been introduced to ensure plugin files are of expected sizes.
Sorting functionality has been added to the plugin list to maintain order.

Automatically installed plugins should be activated without manual intervention.

alleyinteractive / create-wordpress-project