add config module import to content.js for improved configuration management

src/content.js

@@ -1,5 +1,6 @@
 const { extract } = require('@extractus/article-extractor');
 const sharp = require('sharp');
+const config = require('./config');
 const db = require('./db');
 const { generateAndStoreEmbedding } = require('./embeddings');
 const { fetchWithPolicy } = require('./http');