feat: add an all page with cards to link to it

src/components/sections/CategorySection.astro

@@ -1,7 +1,7 @@
 ---
 import { readItems } from '@directus/sdk';
 
-import type { Post, Category } from '@lib/directusTypes';
+import type { Post } from '@lib/directusTypes';
 
 import CategoryCard from '@components/cards/CategoryCard.astro';
 import directus from '@lib/directus';