Support Rails's alias_attribute (inside search)

Created by: JavierM42

I used alias_attribute to change an attribute name at the model level (my db is shared so I can't simply rename the column). I then changed the attribute_types, collection_attributes and show_page_attributes to the new name, and everything worked but the search, which throws

PG::UndefinedColumn: ERROR:  column table.aliased_column does not exist
LINE 1: ... AS CHAR(256))) LIKE '%search_query%' OR LOWER(CAST("...

• Rails 6.0.3.2
• administrate 0.13.0

I know that I can change labels to make the user-facing text be whatever I want, but it would be nice to support aliases to improve the developer experience.