Create 404.md (tauri-apps#2848)

Author: vasfvitor

src/content/docs/404.md

@@ -0,0 +1,19 @@
+---
+title: '404'
+template: doc
+editUrl: false
+tableOfContents: false
+lastUpdated: false
+pagefind: false
+next: false
+prev: false
+hero:
+  title: '404'
+  tagline: Page not found. Check the URL or try using the search bar.
+---
+
+  <p>
+    If you're having trouble navigating, please <a href="https://github.com/tauri-apps/tauri-docs/issues/new/choose">create an issue on GitHub</a> or <a href="https://discord.com/invite/tauri"
+      >report on Discord</a
+    >.
+  </p>