Plugins: disable management of secrets manager plugins through the UI (#51553)

* add special handling on the plugin gathering side to check whether secrets manager plugins are enabled or not

* show disabled badge in front end if the plugin is not enabled

* Only show error in disabled badge hover if one is present (otherwise it shows "undefined")

* refactor to make use of fields already available in the DTO

* fix typo

* if there is no error returned for the plugin, just show 'disabled'

* fix typo

* Update public/app/features/plugins/admin/components/Badges/PluginDisabledBadge.tsx

Co-authored-by: Levente Balogh <balogh.levente.hu@gmail.com>

* Update frontendsettings.go

add clarifying comment

* fix unit test

* rework task to use new frontend property combined with plugin type to determine if the plugin should be disabled

* Update helpers.test.ts

revert test change

* fix unit test

* show custom uninstall message if the plugin is a secrets manager

* bogus commit to trigger precommit

* undo commit

* run precommit manually

Co-authored-by: Levente Balogh <balogh.levente.hu@gmail.com>

public/app/features/plugins/admin/components/InstallControls/InstallControls.tsx

@@ -40,6 +40,10 @@ export const InstallControls = ({ plugin, latestCompatibleVersion }: Props) => {
     return <div className={styles.message}>Renderer plugins cannot be managed by the Plugin Catalog.</div>;
   }
 
+  if (plugin.type === PluginType.secretsmanager) {
+    return <div className={styles.message}>Secrets manager plugins cannot be managed by the Plugin Catalog.</div>;
+  }
+
   if (plugin.isEnterprise && !featureEnabled('enterprise.plugins')) {
     return (
       <HorizontalGroup height="auto" align="center">