Add screenshot tester

src/site/api/suggest.js

@@ -13,7 +13,7 @@ setInterval((new (function() {
 	for (const waiter of waiters.values()) {
 		waiter.stream.push(payload)
 	}
-})).constructor, 50000)
+})).constructor, 50000).unref()
 
 class Waiter {
 	constructor(username) {

src/site/api/update_stream.js

@@ -7,7 +7,7 @@ setInterval((new (function() {
 	for (const stream of streams.values()) {
 		stream.push(payload)
 	}
-})).constructor, 50000)
+})).constructor, 50000).unref()
 
 module.exports = [
 	{

src/site/api/utils/getsettings.js

@@ -60,7 +60,7 @@ function cleanCSRF() {
 	db.prepare("DELETE FROM CSRFTokens WHERE expires <= ?").run(Date.now())
 }
 cleanCSRF()
-setInterval(cleanCSRF, constants.caching.csrf_time)
+setInterval(cleanCSRF, constants.caching.csrf_time).unref()
 
 module.exports.getToken = getToken
 module.exports.getSettings = getSettings