Php – helper functions not loading laravel 5 – Call to undefined function

I've been having a problem loading my helpers file in Laravel 5 and calling the functions from views. The below is a quick overview of how I attempted to setup helpers within my L5 Project.

1. Created a helpers.php file within app/Http;

2. The helpers file contains a basic function, to produce the page title.

   public function full_title($title)
   {
        $base_title = 'Social Tracking Application';
   
        if (isset($title) && $title != ''){
           $comp_title = $title . " | " .  $base_title;    
        } else {
          $comp_title = $base_title;
        }
   
   return $comp_title;
   }
   

3. Updated composer.json to autoload the new helpers file.

   "autoload": {
   "classmap": [
       "database"
   ],
   "psr-4": {
       "App\\": "app/"
   },
   "files":["app/Http/helpers.php"]
   

   },

4. Run composer dump-autoload from the terminal.

After these steps I was under the impression that I could use my helper from views and controllers. So I placed a call to my new helper function within my main layout view by using the following:

<title> full_title($title)  </title>

However when I navigate to any page I receive a FatalErrorMessage Call to Undefined Function full_title. (note the message is usually in the title bar so I move it to a body tag to view the error message).

I can't figure out what it is I'm doing wrong here, I've seen other examples of people using custom helper files in a similar manner but mine just doesn't seem to work am I missing something obvious?

I'm running this of Homestead.

full code base: https://github.com/n1k41l/SocialTrak/tree/middleware-currentUser