Convert ViewsSort plugin discovery to attributes

Ruturaj Chaubey → made their first commit to this issue’s fork.

This should probably be postponed on 📌 Convert ViewsField plugin discovery to attributes Needs review which adds ViewsHandlerAttributeBase.

Turns out we don't need ViewsHandlerAttributeBase, but we will still need the changes to ViewsHandlerManager, so this is still postponed.

Appears to have a test failure

Left a comment about the base class for the attribute class.

Also, let's update the description in \Drupal\views\Plugin\views\sort\SortPluginBase to mention attributes instead of annotations.

Feedback appears to be addressed.

Committed and pushed 77ccadfb80 to 11.x and e4791b4381 to 10.3.x. Thanks!

Automatically closed - issue fixed for 2 weeks with no activity.