Chore: Start annotations app (#113018)

* annotation legacy store with api server, read only

* Add a feature flag for annotations app

* implement list filters

* annotations are not addressable by ID for read operations

* fix registry apps test

* add ownership for an app

* disable linter

* typo, of course

* fix go workspace

* update workspace

* copy annotation app in dockerfile

* update workspace

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Co-authored-by: Tania B. <10127682+undef1nd@users.noreply.github.com>

pkg/services/featuremgmt/toggles_gen.csv

@@ -277,3 +277,4 @@ pluginStoreServiceLoading,experimental,@grafana/plugins-platform-backend,false,f
 onlyStoreActionSets,GA,@grafana/identity-access-team,false,false,false
 panelTimeSettings,experimental,@grafana/dashboards-squad,false,false,false
 dashboardTemplates,experimental,@grafana/sharing-squad,false,false,false
+kubernetesAnnotations,experimental,@grafana/grafana-backend-services-squad,false,false,false