Increase aozora interval to once per 30 minutes

polybar/default.nix

@@ -81,7 +81,7 @@ in
         # Wait a few seconds before running to prevent no internet error on first start
         # TODO: make aozora wait blockingly for internet in --bar mode
         exec = "/run/current-system/sw/bin/sleep 3 && /etc/profiles/per-user/elnu/bin/aozora air-quality-in-lakewood-aw-341300 --bar 2> /dev/null";
-        interval = 90;
+        interval = 1800;
       };
       "module/filesystem" = {
         type = "internal/fs";