Add Colmena to manage systems, use better pathing for smallfetch, use better mountpoints and hostnames from Colema

hosts/prophet/colmena/default.nix

@@ -0,0 +1,8 @@
+{ config, ... }:
+{
+  deployment = {
+    buildOnTarget = true;
+    tags = [ "server" ];
+    targetHost = "42f:2737:2aed:4dee:cbe4:3c73:1918:ad9b";
+  };
+}

hosts/prophet/default.nix

@@ -2,6 +2,7 @@
 {
   imports = [
     ./boot
+    ./colmena
     ./disko
     ./filesystems
     ./hardware
@@ -11,10 +12,7 @@
     (modulesPath + "/profiles/headless.nix")
   ];
 
-  networking = {
-    hostName = "prophet";
-    hostId = "97a21a38";
-  };
+  networking.hostId = "97a21a38";
 
   system = {
     server.enable = true;