Add setting to disable the anti-spam (#11296)

* Add environment variable to disable the anti-spam

* Move antispam setting to admin settings

* Fix typo

* antispam → spam_check

config/locales/en.yml

@@ -250,6 +250,7 @@ en:
       feature_profile_directory: Profile directory
       feature_registrations: Registrations
       feature_relay: Federation relay
+      feature_spam_check: Anti-spam
       feature_timeline_preview: Timeline preview
       features: Features
       hidden_service: Federation with hidden services
@@ -449,6 +450,9 @@ en:
         desc_html: You can write your own privacy policy, terms of service or other legalese. You can use HTML tags
         title: Custom terms of service
       site_title: Server name
+      spam_check_enabled:
+        desc_html: Mastodon can auto-silence and auto-report accounts based on measures such as detecting accounts who send repeated unsolicited messages. There may be false positives.
+        title: Anti-spam
       thumbnail:
         desc_html: Used for previews via OpenGraph and API. 1200x630px recommended
         title: Server thumbnail

config/settings.yml

@@ -61,6 +61,7 @@ defaults: &defaults
   activity_api_enabled: true
   peers_api_enabled: true
   show_known_fediverse_at_about_page: true
+  spam_check_enabled: true
 
 development:
   <<: *defaults