Add MessageSearch controller, and its nd its params
Delete previous controller (bad name), remade it and added the proper methods
Search is now handles byd by MessagesSearchController, edit routes to match the search route.
Separate how the results are handled by the controller: if there's a single exact match, it'll display the message directly, else it will show the table with that single message, on multiple messages will display the table in the search form.
Refactor MessagesSearchController search function.
Clean up MessagesController and Message model, removed search from those.