Update all dependencies

This takes part of the work being done in #96 that was reverted but still useful.

Note Tailwind and Fresh weren't upgraded because there's no security vulnerability in either, and I have found the new versions to be worse in performance. Thos will likely stay at those fixed versions going forward.

dev.ts

@@ -3,6 +3,6 @@
 import dev from 'fresh/dev.ts';
 import config from './fresh.config.ts';
 
-import 'std/dotenv/load.ts';
+import '@std/dotenv/load';
 
 await dev(import.meta.url, './main.ts', config);