Harmonise the URLs between local devcontainer & remote/cloud

[soup-bowl]

In the process of supporting devcontainers (which isn't a ticket, bad me), I've come across a configuration issue - the URL given to WordPress during initialisation works on cloud, but not on local. The reason for this being that it's hardcoded to GitHub Codespaces URL, which is obviously not applicable in a local environment. This may become more problematic if GItPod begins to support devcontainer setups.

Adding this ticket for me to explore different methods of tackling this, such as (in order of ideal pref):

• Seeing if there's a gp url equivalent in DevContainers (used in the GitPod script to get the workspace URL).
• Introduce the Microsoft Azure Config script to allow the site to accept flexible URLs.
• Detecting during initialisation what platform the user is using, and adjust to suit.

[soup-bowl]

Script has been setup to anticipate GitPod, Codespace and Localhost environments. Will leave this open a little longer while I make sure it’s the right/effective process.