[scraper] rework scraper scheduling and added seeders updating

scraper/scheduler/scheduler.js

@@ -0,0 +1,13 @@
+const { scheduleScraping, scrapeAll } = require('./scraper')
+const { scheduleUpdateSeeders } = require('./seeders')
+
+function startScraper() {
+  if (process.env.ENABLE_SCHEDULING) {
+    scheduleScraping();
+    scheduleUpdateSeeders();
+  } else {
+    scrapeAll()
+  }
+}
+
+module.exports = { startScraper }