Fix in memoriam accounts appearing in follow recommendations (#31474)

Co-authored-by: Utkarsh Wankar <46633523+kernal053@users.noreply.github.com>

app/models/account.rb

@@ -144,6 +144,7 @@ class Account < ApplicationRecord
   scope :dormant, -> { joins(:account_stat).merge(AccountStat.without_recent_activity) }
   scope :with_username, ->(value) { where arel_table[:username].lower.eq(value.to_s.downcase) }
   scope :with_domain, ->(value) { where arel_table[:domain].lower.eq(value&.to_s&.downcase) }
+  scope :without_memorial, -> { where(memorial: false) }
 
   after_update_commit :trigger_update_webhooks
 

app/models/account_suggestions/friends_of_friends_source.rb

@@ -31,6 +31,7 @@ class AccountSuggestions::FriendsOfFriendsSource < AccountSuggestions::Source
         AND accounts.suspended_at IS NULL
         AND accounts.silenced_at IS NULL
         AND accounts.moved_to_account_id IS NULL
+        AND accounts.memorial = FALSE
         AND follow_recommendation_mutes.target_account_id IS NULL
       GROUP BY accounts.id, account_stats.id
       ORDER BY frequency DESC, account_stats.followers_count ASC

app/models/account_suggestions/source.rb

@@ -14,6 +14,7 @@ class AccountSuggestions::Source
       .searchable
       .where(discoverable: true)
       .without_silenced
+      .without_memorial
       .where.not(follows_sql, id: account.id)
       .where.not(follow_requests_sql, id: account.id)
       .not_excluded_by_account(account)