6.2: no more ip verification

- removed ip verification and updated privacy policy to reflect this change.
- streamable links now last for 20 seconds instead of 2 minutes.
- cleaned up stream verification algorithm. now the same function isn't run 4 times in a row.
- removed deprecated way of hosting a cobalt instance.

docker-compose.yml.example

@@ -21,12 +21,3 @@ services:
             - webPort=9000
             - webURL=https://co.wukko.me/
             - apiURL=https://co.wuk.sh/
-    cobalt-both:
-        build: .
-        restart: unless-stopped
-        container_name: cobalt-both
-        ports:
-            - 9000:9000/tcp
-        environment:
-            - port=9000
-            - selfURL=https://co.wukko.me/