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.

lib/utils/webdav.ts

@@ -1,4 +1,4 @@
-import { join } from 'std/path/join.ts';
+import { join } from '@std/path';
 import { lookup } from 'mrmime';
 
 export function getProperDestinationPath(url: string) {