Add admin notifications

[seothemes]

Description

Adds functionality for handling admin notification banners from the server.

Testing

There are 2 constants available for testing:

// Set a custom URL to the notification JSON.
define( 'LLMS_ADMIN_NOTIFICATIONS_URL', 'https://lifter-telemetry.local/wp-content/cache/llms/notifications/notifications.json' );

// Set a custom time delay to pause notifications.
define( 'LLMS_ADMIN_NOTIFICATIONS_DELAY', 0 );

How has this been tested?

Manually

Screenshots

Types of changes

New feature (non-breaking change which adds functionality)

Checklist:

• This PR requires and contains at least one changelog file.
• My code has been tested.
• My code passes all existing automated tests.
• My code follows the LifterLMS Coding & Documentation Standards.

[eri-trabiccolo]

hey @seothemes is this still a draft?

[eri-trabiccolo]

draft or ready to be reviewed? :D

[eri-trabiccolo]

close in favor of #2532