documentation: remove references to Icons for introductory material

The icons are not yet used in this path.
This is unneccessary overhead for new users, with no payoff yet.

docs/site/getting-started/configure.md

@@ -5,10 +5,6 @@
 In the `flake.nix` file:
 
 - [x] set a unique `clanName`.
-- [ ] set `clanIcon` (optional)
-- [ ] Set `machineIcon` per machine (optional)
-
-These icons will be used by our future GUI.
 
 === "**buildClan**"
 
@@ -16,16 +12,12 @@ These icons will be used by our future GUI.
     buildClan {
         # Set a unique name 
         clanName = "Lobsters";
-        # Optional, a path to an image file
-        clanIcon = ./path/to/file; 
         # Should usually point to the directory of flake.nix
         directory = ./.;
 
         machines = {
             jon = {
                 # ...
-                # Optional, a path to an image file
-                clanCore.machineIcon = ./path/to/file; 
             };
             # ...
         }
@@ -40,14 +32,10 @@ These icons will be used by our future GUI.
     clan = {
         # Set a unique name 
         clanName = "Lobsters";
-        # Optional, a path to an image file
-        clanIcon = ./path/to/file;
 
         machines = {
             jon = {
                 # ...
-                # Optional, a path to an image file
-                clanCore.machineIcon = ./path/to/file; 
             };
             # ...
         }

docs/site/getting-started/flake-parts.md

@@ -73,7 +73,6 @@ Below is a guide on how to structure this in your flake.nix:
               # ... more modules
             ];
             nixpkgs.hostPlatform = "x86_64-linux";
-            clanCore.machineIcon = null; # Optional, a path to an image file
 
             # Set this for clan commands use ssh i.e. `clan machines update`
             clan.networking.targetHost = pkgs.lib.mkDefault "root@jon";

templates/new-clan/flake.nix

@@ -12,7 +12,6 @@
       clan = clan-core.lib.buildClan {
         directory = self;
         clanName = "__CHANGE_ME__"; # Ensure this is internet wide unique.
-        clanIcon = null; # Optional, a path to an image file
 
         # Prerequisite: boot into the installer
         # See: https://docs.clan.lol/getting-started/installer
@@ -28,8 +27,6 @@
 
             nixpkgs.hostPlatform = system;
 
-            clanCore.machineIcon = null; # Optional, a path to an image file
-
             # Set this for clan commands use ssh i.e. `clan machines update`
             # If you change the hostname, you need to update this line to root@<new-hostname>
             # This only works however if you have avahi running on your admin machine else use IP
@@ -60,8 +57,6 @@
 
             nixpkgs.hostPlatform = system;
 
-            clanCore.machineIcon = null; # Optional, a path to an image file
-
             # Set this for clan commands use ssh i.e. `clan machines update`
             # If you change the hostname, you need to update this line to root@<new-hostname>
             # This only works however if you have avahi running on your admin machine else use IP