fixed static issues

app/Models/File.php

@@ -74,7 +74,7 @@ class File extends Model
     /**
      * Form\a\t created at date reformat
      *
-     * @return string
+     * @return string|null
      */
     public function getDeletedAtAttribute()
     {
@@ -98,7 +98,7 @@ class File extends Model
     /**
      * Format thumbnail url
      *
-     * @return string
+     * @return string|null
      */
     public function getThumbnailAttribute()
     {

app/Models/Folder.php

@@ -109,7 +109,7 @@ class Folder extends Model
     /**
      * Format created at date reformat
      *
-     * @return string
+     * @return string|null
      */
     public function getDeletedAtAttribute()
     {

app/Models/Share.php

@@ -6,6 +6,9 @@ use Illuminate\Database\Eloquent\Model;
 use Illuminate\Notifications\Notifiable;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 
+/**
+ * @method static whereNotNull(string $string)
+ */
 class Share extends Model
 {
     use Notifiable, HasFactory;