Refactor and add importer to Installer module #443 (#444)

* Refactor and add importer to Installer module #443

* Refactor for finances to use in import

* Import groups into roles

* Formatting

* Formatting

* Add interface in installer for import

* Notes about importing

* Check for installer folder

* Formatting

* Fix pirep->user mapping

* Unused import

* Formatting

app/Http/Middleware/SetActiveTheme.php

@@ -2,15 +2,17 @@
 
 namespace App\Http\Middleware;
 
+use App\Contracts\Middleware;
 use Closure;
 use Igaster\LaravelTheme\Facades\Theme;
+use Illuminate\Http\Request;
 
 /**
  * Read the current theme from the settings (set in admin), and set it
  */
-class SetActiveTheme
+class SetActiveTheme implements Middleware
 {
-    public function handle($request, Closure $next)
+    public function handle(Request $request, Closure $next)
     {
         $theme = setting('general.theme');
         if (!empty($theme)) {