feat(stackoverflow-backend): extract search stack overflow module

Signed-off-by: Camila Belo <camilaibs@gmail.com>

plugins/stack-overflow-backend/package.json

@@ -5,22 +5,9 @@
   "types": "src/index.ts",
   "license": "Apache-2.0",
   "publishConfig": {
-    "access": "public"
-  },
-  "exports": {
-    ".": "./src/index.ts",
-    "./alpha": "./src/alpha.ts",
-    "./package.json": "./package.json"
-  },
-  "typesVersions": {
-    "*": {
-      "alpha": [
-        "src/alpha.ts"
-      ],
-      "package.json": [
-        "package.json"
-      ]
-    }
+    "access": "public",
+    "main": "dist/index.cjs.js",
+    "types": "dist/index.d.ts"
   },
   "backstage": {
     "role": "backend-plugin"
@@ -46,10 +33,8 @@
   },
   "dependencies": {
     "@backstage/backend-common": "workspace:^",
-    "@backstage/backend-plugin-api": "workspace:^",
-    "@backstage/backend-tasks": "workspace:^",
     "@backstage/config": "workspace:^",
-    "@backstage/plugin-search-backend-node": "workspace:^",
+    "@backstage/plugin-search-backend-module-stack-overflow": "workspace:^",
     "@backstage/plugin-search-common": "workspace:^",
     "node-fetch": "^2.6.7",
     "qs": "^6.9.4",
@@ -58,6 +43,7 @@
   "devDependencies": {
     "@backstage/backend-test-utils": "workspace:^",
     "@backstage/cli": "workspace:^",
+    "@backstage/plugin-search-backend-node": "workspace:^",
     "msw": "^1.0.0"
   },
   "files": [