Recovery mode: Plugin not removed from paused list when fatal error is fixed

[henry.wright]

To reproduce please follow these steps:

1: Go to wp-admin > Plugins and enable a given plugin
2: Create a fatal error in that plugin
3: Go to wp-admin > Plugins again. You should now be in recovery mode
4: Fix the fatal error in the plugin
5: Now click on "Deactivate"
6: Now click on "Activate"

I would expect the plugin to activate normally because the fatal error has been fixed. However, the plugin is still in the paused list.

[henry.wright]

I think this will be necessary. I'm not sure where the best place will be though

$storage = new WP_Paused_Extensions_Storage( 'plugin' );
$storage->delete( $plugin_name );

[flixos90]

This happens for themes too, and it's because the extensions are not removed from the paused storage when they're deactivated. 46812.diff​ fixes this.

[flixos90]

In 45115:

Bootstrap/Load: Remove extension from the list of paused extensions when it is deactivated.

With this change, fatal errors recorded before a plugin was deactivated or a theme was switched away from do not persist. This ensures that re-enabling it re-checks for fatal errors correctly.

Props aandrewdixon, dhanukanuwan, henrywright.
Fixes #46812.