Feature / user recommendation config in admin ui (#3357)

* add config for external user recommendation into admin ui

* debug

* correct admin ui

* switch external user recommendation to admin ui config

* debug

* debug

* debug

* Revert "debug"

This reverts commit f4a0460e5b.

* explicit parseInt radix

* add Japanese message

* change default engine to https

* remove unused settings

* debug

* nullable externalUserRecommendationTimeout

src/misc/fetch-meta.ts

@@ -15,7 +15,10 @@ const defaultMeta: any = {
 	maxNoteTextLength: 1000,
 	enableTwitterIntegration: false,
 	enableGithubIntegration: false,
-	enableDiscordIntegration: false
+	enableDiscordIntegration: false,
+	enableExternalUserRecommendation: false,
+	externalUserRecommendationEngine: "https://vinayaka.distsn.org/cgi-bin/vinayaka-user-match-misskey-api.cgi?{{host}}+{{user}}+{{limit}}+{{offset}}",
+	externalUserRecommendationTimeout: 300000
 };
 
 export default async function(): Promise<IMeta> {