feat: add pluginId to actions, server name/description config, dot separator for namespaced tools (#33344)

Signed-off-by: benjdlambert <ben@blam.sh>

packages/backend-plugin-api/report-alpha.api.md

@@ -82,6 +82,7 @@ export interface ActionsService {
 // @alpha (undocumented)
 export type ActionsServiceAction = {
   id: string;
+  pluginId: string;
   name: string;
   title: string;
   description: string;

packages/backend-plugin-api/src/alpha/ActionsService.ts

@@ -22,6 +22,7 @@ import { BackstageCredentials } from '@backstage/backend-plugin-api';
  */
 export type ActionsServiceAction = {
   id: string;
+  pluginId: string;
   name: string;
   title: string;
   description: string;