chore: update package.json to follow other examples

Signed-off-by: Jonas Beck <jonas.beck@velux.com>

plugins/events-backend-module-kafka/package.json

@@ -1,27 +1,38 @@
 {
   "name": "@backstage/plugin-events-backend-module-kafka",
-  "description": "The kafka backend module for the events plugin.",
   "version": "0.0.0",
-  "main": "src/index.ts",
-  "types": "src/index.ts",
-  "license": "Apache-2.0",
-  "private": true,
+  "description": "The kafka backend module for the events plugin.",
+  "backstage": {
+    "role": "backend-plugin-module",
+    "pluginId": "events",
+    "pluginPackage": "@backstage/plugin-events-backend"
+  },
   "publishConfig": {
     "access": "public",
     "main": "dist/index.cjs.js",
     "types": "dist/index.d.ts"
   },
-  "backstage": {
-    "role": "backend-plugin-module"
+  "homepage": "https://backstage.io",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/backstage/backstage",
+    "directory": "plugins/events-backend-module-kafka"
   },
+  "license": "Apache-2.0",
+  "main": "src/index.ts",
+  "types": "src/index.ts",
+  "files": [
+    "dist",
+    "config.d.ts"
+  ],
   "scripts": {
-    "start": "backstage-cli package start",
     "build": "backstage-cli package build",
-    "lint": "backstage-cli package lint",
-    "test": "backstage-cli package test",
     "clean": "backstage-cli package clean",
+    "lint": "backstage-cli package lint",
     "prepack": "backstage-cli package prepack",
-    "postpack": "backstage-cli package postpack"
+    "postpack": "backstage-cli package postpack",
+    "start": "backstage-cli package start",
+    "test": "backstage-cli package test"
   },
   "dependencies": {
     "@backstage/backend-plugin-api": "workspace:^",
@@ -35,7 +46,5 @@
     "@backstage/cli": "workspace:^",
     "@backstage/plugin-events-backend-test-utils": "workspace:^"
   },
-  "files": [
-    "dist"
-  ]
+  "configSchema": "config.d.ts"
 }