Release Panels 4.8.0 or a new 5.0.x branch and 5.0.0-alpha1 tag

Problem/Motivation

#3330631: Update jQuery UI Droppable module from ~1.0 to ~2.0
Tested with PHP 8.2 and Drupal 9.5.9

The following issue is six years old, indicating its significant age.
#2852655: Plan for Panels 8.x-4.8 release

Proposed resolution

• Release the 8.x-4.8 tag to allow for more testing on install and update.
• Have the full check and support for PHP 8.2 in a new issue.
• Not to be blocked with #3352307: Change ctools dependency from ^3.12 to ^3.12 || ^4.0 to allow for a smooth upgrade process
• Implementing micro releases and micro deployments helps to minimize issues.

Remaining tasks

User interface changes

API changes

Data model changes