Fix #3430: Accept the search[id] param in all controllers.

* Allow every controller to take the `search[id]` param.

* Parse the `search[id]` param the same way that the `id:<N>` metatag is
  parsed. So `search[id]=1,2,3`, `search[id]=<42`, `search[id]=1..10`, for
  example, are all accepted.

app/models/bulk_update_request.rb

@@ -23,11 +23,7 @@ class BulkUpdateRequest < ApplicationRecord
 
   module SearchMethods
     def search(params = {})
-      q = where("true")
-
-      if params[:id].present?
-        q = q.where("id in (?)", params[:id].split(",").map(&:to_i))
-      end
+      q = super
 
       if params[:user_name].present?
         q = q.where(user_id: User.name_to_id(params[:user_name]))