Plugin metrics (#7626)

* feat: add enable/disable checkbox for plugin usage

* feat: submit plugin data to packages.nodebb.org

only submit in production mode
submit once every 24 hours
dont submit for plugins that have "private": true in plugin.json
enabled on new installs
disabled on existing installs

* fix: hash not working after first send

fix statusCode

* fix: remove url

* feat: show compatibilty

* feat: add install question for submit plugin usage

src/start.js

@@ -50,6 +50,7 @@ start.start = function () {
 			if (nconf.get('runJobs')) {
 				require('./notifications').startJobs();
 				require('./user').startJobs();
+				require('./plugins').startJobs();
 			}
 
 			webserver.listen(next);