Move Nix files back to the root of the project

hosts/hetznix/services/jitsi.nix

@@ -0,0 +1,25 @@
+{
+  services = {
+    jitsi-meet = {
+      enable = true;
+      caddy.enable = true;
+      nginx.enable = false;
+      secureDomain.enable = true;
+
+      hostName = "meet.oliverdavies.uk";
+
+      prosody = {
+        enable = true;
+        lockdown = true;
+      };
+
+      jicofo = {
+        enable = true;
+      };
+    };
+  };
+
+  nixpkgs.config.permittedInsecurePackages = [
+    "jitsi-meet-1.0.8043"
+  ];
+}