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/anonymize-confirmation.html

@@ -0,0 +1,7 @@
+<h2>Confirm anonymization</h2>
+<p>Are you certain you want to proceed?</p>
+<p>This action cannot be undone.</p>
+<form method="post" action="/privacy/anonymize">
+    <button type="submit">Confirm</button>
+</form>
+<p><a href="/privacy">Cancel</a></p>