fix: update prodos docs and assets, add external resources

Major update to prodos documentation: expanded content for Colas, Pilas, Árboles, and Árboles Binarios de Búsqueda, including new diagrams and detailed explanations. Added new image assets for visual aids. Updated navigation and index to mark notes as discontinued and recommend external resources, including Dani Callero's wiki. Sidebar and config updated to reflect new structure and links.

Author: TeenBiscuits

astro.config.mjs

@@ -234,11 +234,17 @@ export default defineConfig({
             items: [
               {
                 label: "Apuntes",
+                badge: { text: "Descontinuados", variant: "caution" },
                 autogenerate: { directory: "prodos/apuntes" },
               },
               {
-                label: "Código",
+                label: "Código y más",
                 items: [
+                  {
+                    label: "Wiki de Dani Callero",
+                    link: "https://wiki.danicallero.es/Universidad/Programación-2/",
+                    badge: { text: "Apuntes", variant: "note" },
+                  },
                   {
                     label: "FerLS/PRO2",
                     link: "https://github.com/FerLS/PRO2",