[erome] handle reposts on user profiles (#6582)

https://github.com/mikf/gallery-dl/issues/6582#issuecomment-3221322147

- add 'reposts' option
- disable reposts by default
- process URL query parameters, e.g. 't=posts' or 'page=3'

docs/gallery-dl.conf

@@ -287,6 +287,12 @@
                 "metadata": false
             }
         },
+        "erome":
+        {
+            "user": {
+                "reposts": false
+            }
+        },
         "exhentai":
         {
             "username": "",