Add domain icons for InkBunny, Newgrounds, and Patreon; update E621 post helper and improve file URL handling

test/fixtures/files/domain/e621/job/posts_5270136.json

@@ -0,0 +1,86 @@
+{
+  "post": {
+    "id": 5270136,
+    "created_at": "2024-12-27T16:42:18.693-05:00",
+    "updated_at": "2024-12-27T16:54:52.228-05:00",
+    "file": {
+      "width": 1500,
+      "height": 1500,
+      "ext": "png",
+      "size": 1618955,
+      "md5": "d7720676ae1dc4c0ff53c1c34ae5c5b0",
+      "url": null
+    },
+    "preview": { "width": 150, "height": 150, "url": null },
+    "sample": {
+      "has": true,
+      "height": 850,
+      "width": 850,
+      "url": null,
+      "alternates": {}
+    },
+    "score": { "up": 2, "down": 0, "total": 2 },
+    "tags": {
+      "general": [
+        "anthro",
+        "duo",
+        "herm",
+        "intersex",
+        "intersex/male",
+        "knot",
+        "male",
+        "young",
+        "young_anthro"
+      ],
+      "artist": ["zombieviking"],
+      "contributor": [],
+      "copyright": [],
+      "character": [],
+      "species": [
+        "bird_dog",
+        "canid",
+        "canine",
+        "canis",
+        "domestic_cat",
+        "domestic_dog",
+        "felid",
+        "feline",
+        "felis",
+        "golden_retriever",
+        "hunting_dog",
+        "mammal",
+        "retriever"
+      ],
+      "invalid": ["experiment_(disambiguation)"],
+      "meta": ["hi_res"],
+      "lore": []
+    },
+    "locked_tags": [],
+    "change_seq": 63442546,
+    "flags": {
+      "pending": true,
+      "flagged": false,
+      "note_locked": false,
+      "status_locked": false,
+      "rating_locked": false,
+      "deleted": false
+    },
+    "rating": "e",
+    "fav_count": 3,
+    "sources": ["https://www.furaffinity.net/view/59306869/"],
+    "pools": [],
+    "relationships": {
+      "parent_id": null,
+      "has_children": false,
+      "has_active_children": false,
+      "children": []
+    },
+    "approver_id": null,
+    "uploader_id": 809468,
+    "description": "hey I don't post here often !\nHere's my furaffinity !\nhttps://www.furaffinity.net/user/zombieviking",
+    "comment_count": 0,
+    "is_favorited": false,
+    "has_notes": false,
+    "duration": null
+  }
+}