Apply fixes from StyleCI

src/Acl/AccessManager.php

@@ -42,7 +42,7 @@ trait AccessManager
      * @param  int  $role_id
      * @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Eloquent\Collection
      */
-    public function getCompleteRole(int $role_id = null)
+    public function getCompleteRole(?int $role_id = null)
     {
 
         $roles = RoleModel::with('permissions', 'users');

src/Http/Controllers/Character/MailController.php

@@ -130,7 +130,7 @@ public function getMailTimelineRead(int $message_id)
      * @param  int  $message_id
      * @return mixed
      */
-    private function getCharacterMailTimeline(int $message_id = null)
+    private function getCharacterMailTimeline(?int $message_id = null)
     {
         // Get the User for permissions and affiliation
         // checks

src/Http/Controllers/Corporation/MiningLedgerController.php

@@ -40,7 +40,7 @@ class MiningLedgerController extends Controller
      * @param  \Seat\Web\Http\DataTables\Corporation\Industrial\MiningDataTable  $dataTable
      * @return mixed
      */
-    public function index(CorporationInfo $corporation, MiningDataTable $dataTable, int $year = null, int $month = null)
+    public function index(CorporationInfo $corporation, MiningDataTable $dataTable, ?int $year = null, ?int $month = null)
     {
         if (is_null($year)) $year = carbon()->year;
 

src/Http/Controllers/Squads/ApplicationsController.php

@@ -64,8 +64,8 @@ public function show(Squad $squad, int $id)
      */
     public function store(Request $request, Squad $squad)
     {
-        if(!$squad->isUserEligible(auth()->user())) {
-            return redirect()->back()->with('error','You are not eligible for this squad!');
+        if(! $squad->isUserEligible(auth()->user())) {
+            return redirect()->back()->with('error', 'You are not eligible for this squad!');
         }
 
         // in case the squad is manual and does not contain any moderator
@@ -112,8 +112,8 @@ public function approve(Squad $squad, int $id)
     {
         $application = SquadApplication::with('squad', 'user')->find($id);
 
-        if(!$squad->isUserEligible($application->user)) {
-            return redirect()->back()->with('error','The applicant is not eligible for this squad!');
+        if(! $squad->isUserEligible($application->user)) {
+            return redirect()->back()->with('error', 'The applicant is not eligible for this squad!');
         }
 
         $squad->members()->save($application->user);