Add IP-based rules (#14963)

config/locales/simple_form.en.yml

@@ -65,6 +65,14 @@ en:
         data: CSV file exported from another Mastodon server
       invite_request:
         text: This will help us review your application
+      ip_block:
+        comment: Optional. Remember why you added this rule.
+        expires_in: IP addresses are a finite resource, they are sometimes shared and often change hands. For this reason, indefinite IP blocks are not recommended.
+        ip: Enter an IPv4 or IPv6 address. You can block entire ranges using the CIDR syntax. Be careful not to lock yourself out!
+        severities:
+          no_access: Block access to all resources
+          sign_up_requires_approval: New sign-ups will require your approval
+        severity: Choose what will happen with requests from this IP
       sessions:
         otp: 'Enter the two-factor code generated by your phone app or use one of your recovery codes:'
         webauthn: If it's an USB key be sure to insert it and, if necessary, tap it.
@@ -170,6 +178,13 @@ en:
         comment: Comment
       invite_request:
         text: Why do you want to join?
+      ip_block:
+        comment: Comment
+        ip: IP
+        severities:
+          no_access: Block access
+          sign_up_requires_approval: Limit sign-ups
+        severity: Rule
       notification_emails:
         digest: Send digest e-mails
         favourite: Someone favourited your status