Large 0.3 changes

- Split the gigantic mess that web.rs was into seperate files
- Split the app into two clear functions: web and bot
- Add privacy policy
- Add privacy
- Make the site respect GDPR and Discord ToS
- Add basic API
- Add timezone detection and automatic time changes

static/timezone.js

@@ -0,0 +1,11 @@
+(() => {
+    const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
+    if (!timezone) return;
+    fetch("/timezone", {
+        method: "POST",
+        headers: {"Content-Type": "application/json"},
+        body: JSON.stringify({timezone}),
+    }).then(response => {
+        if (response.ok) window.location.reload();
+    });
+})();