Update menu entries and fixes some profile picture problems.

Added help pages too.

_output/navigation/support_us.json

@@ -0,0 +1,15 @@
+{
+    "parent_navigation_id": "pages",
+    "display_order": 10,
+    "navigation_type_id": "basic",
+    "type_config": {
+        "link": "https://ko-fi.com/romhackplaza",
+        "display_condition": "",
+        "extra_attributes": {
+            "icon": "coffee",
+            "color": "var(--rhpz-orange)",
+            "target": "_blank"
+        }
+    },
+    "enabled": true
+}