Cleaned up namespacing in routes

Also moved home controller and moved controllers up a level in http.

app/Http/ApiController.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace BookStack\Http;
+
+use BookStack\Api\ListingResponseBuilder;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Http\JsonResponse;
+
+abstract class ApiController extends Controller
+{
+    protected $rules = [];
+
+    /**
+     * Provide a paginated listing JSON response in a standard format
+     * taking into account any pagination parameters passed by the user.
+     */
+    protected function apiListingResponse(Builder $query, array $fields, array $modifiers = []): JsonResponse
+    {
+        $listing = new ListingResponseBuilder($query, request(), $fields);
+
+        foreach ($modifiers as $modifier) {
+            $listing->modifyResults($modifier);
+        }
+
+        return $listing->toResponse();
+    }
+
+    /**
+     * Get the validation rules for this controller.
+     * Defaults to a $rules property but can be a rules() method.
+     */
+    public function getValidationRules(): array
+    {
+        return $this->rules();
+    }
+
+    /**
+     * Get the validation rules for the actions in this controller.
+     * Defaults to a $rules property but can be a rules() method.
+     */
+    protected function rules(): array
+    {
+        return $this->rules;
+    }
+}