feat(home): Fish greeting

modules/home/programs/fish/default.nix

@@ -19,6 +19,10 @@ in
       # general
       babelfish
 
+      # for fish_greeting()
+      marleyos.figlet-xero-fonts
+      lolcat
+
       # for extract()
       gnutar
       bzip2
@@ -29,8 +33,6 @@ in
       unrar-free
     ];
 
-    # TODO: Set the greeting to `figlet -f Elite marleyOS`
-
     programs.fish = {
       enable = true;
 
@@ -71,6 +73,12 @@ in
       };
 
       functions = {
+        fish_greeting = # fish
+          ''
+            echo ""
+            figlet -f Elite " marleyOS" | lolcat
+          '';
+
         extract = {
           argumentNames = "file";
           body = # fish