Improve blocked view of profiles (#10491)

* Revert "Fix filtering of favourited_by, reblogged_by, followers and following (#10447)"

This reverts commit 120544067f.

* Revert "Hide blocking accounts from blocked users (#10442)"

This reverts commit 62bafa20a1.

* Improve blocked view of profiles

- Change "You are blocked" to "Profile unavailable"
- Hide following/followers in API when blocked
- Disable follow button and show "Profile unavailable" on public profile as well

app/controllers/api/v1/accounts/following_accounts_controller.rb

@@ -19,13 +19,17 @@ class Api::V1::Accounts::FollowingAccountsController < Api::BaseController
   end
 
   def load_accounts
-    return [] if @account.user_hides_network? && current_account.id != @account.id
+    return [] if hide_results?
 
     default_accounts.merge(paginated_follows).to_a
   end
 
+  def hide_results?
+    (@account.user_hides_network? && current_account.id != @account.id) || (current_account && @account.blocking?(current_account))
+  end
+
   def default_accounts
-    Account.without_blocking(current_account).includes(:passive_relationships, :account_stat).references(:passive_relationships)
+    Account.includes(:passive_relationships, :account_stat).references(:passive_relationships)
   end
 
   def paginated_follows