Make OneDesign Plugin Compatible with WordPress Multisite (MU)

[vishal4669]

Description

Enhance the OneDesign Plugin to support WordPress Multisite (MU) environments with seamless integration and management of Governing and Brand sites.

Requirements

Network Activation Behavior

• When the plugin is network activated, it should automatically detect all sites in the network.
• Display a popup allowing the user to select the Governing Site from the available network sites.

Governing Site Functionality

• On the Governing Site, when a user clicks “Add Brand Site”, display a list of existing network sites that can be linked as brand sites.
• Provide an additional option to add a site outside of the network as a brand site.

Brand Site Functionality

• Allow brand sites (in MU) to be deleted from the Governing Site dashboard.
• Remove the OneDesign menu page from all MU brand sites to avoid redundancy.

Technical Implementation

• Replace REST-based site add/deletion with hook-based handling.
• Utilize WordPress MU functions to directly modify and manage site-related options values.
• Ensure proper synchronization of settings between Governing and Brand sites across the network.

Acceptance Criteria

• Plugin detects all network sites upon activation and displays a Governing Site selection popup.
• Governing Site can link or create Brand Sites (both inside and outside the network).
• Brand Sites can be safely deleted via hooks.
• OneDesign admin menu hidden on Brand Sites.
• All add/delete site operations handled through MU hooks, not REST.
• Code thoroughly tested in both single-site and MU setups.

[rishavjeet]

QA Issues

• The Template removal is failing