feat: add onionsite link

sites/+components/footer.php

@@ -20,6 +20,11 @@
 			class="footer__nav-target"
 			title="Go back to the main page of sessioncommunities.online"
 		>Main page</a
+		><a
+			href="http://scolist4nm62d7khablj7vfvkmf2h4gmzdgypyfgd5nem2z5dcahuqyd.onion/"
+			class="footer__nav-target"
+			title="Visit sessioncommunities.online securely using Tor Browser"
+		>Main page (Tor)</a
 		><a
 			href="/groups/regional/"
 			class="footer__nav-target"