[pixeldrain] add support for filesystem URLs (#7473)

docs/configuration.rst

@@ -3862,6 +3862,16 @@ Description
     Your account's `API key <https://pixeldrain.com/user/api_keys>`__
 
 
+extractor.pixeldrain.recursive
+--------------------------
+Type
+    ``bool``
+Default
+    ``false``
+Description
+    Recursively download files from subfolders.
+
+
 extractor.pixiv.include
 -----------------------
 Type

docs/gallery-dl.conf

@@ -488,7 +488,8 @@
         },
         "pixeldrain":
         {
-            "api-key": null
+            "api-key"  : null,
+            "recursive": false
         },
         "pixiv":
         {

docs/supportedsites.md

@@ -706,7 +706,7 @@ Consider all listed sites to potentially be NSFW.
 <tr>
     <td>pixeldrain</td>
     <td>https://pixeldrain.com/</td>
-    <td>Albums, Files</td>
+    <td>Albums, Files, Filesystems</td>
     <td></td>
 </tr>
 <tr>