Add some worldgen stuff

Author: foxeddev

src/lib/sidebar/tabs/Guides.svelte

@@ -37,6 +37,9 @@
   import IconBuilding from "~icons/tabler/building-factory-2";
   import IconCottage from "~icons/tabler/building-cottage";
   import IconTrees from "~icons/tabler/trees";
+  import IconBackhoe from "~icons/tabler/backhoe";
+  import IconMountain from "~icons/tabler/mountain";
+  import IconBuildingCastle from "~icons/tabler/building-castle";
   import SidebarPlaceholder from "../navigation/SidebarPlaceholder.svelte";
 </script>
 
@@ -85,6 +88,11 @@
   <SidebarPlaceholder label="Twilight Forest" icon={IconTrees} />
 </SidebarCategory>
 
+<SidebarCategory name="World Generation" icon={IconBackhoe}>
+  <SidebarPage label="Custom World Generation" icon={IconMountain} page="/guide/worldgen/custom-worldgen"></SidebarPage>
+  <SidebarPlaceholder label="Custom Structures" icon={IconBuildingCastle}></SidebarPlaceholder>
+</SidebarCategory>
+
 <SidebarCategory name="Misc" icon={IconBrackets}>
   <SidebarPage label="Debugging" icon={IconBug} page="/guide/misc/debugging" />
   <SidebarPage label="Raycasts" icon={IconArrow} page="/guide/misc/raycasts" />