removed k9s overlay

this commit got builds working, working in the sense that the build
actually threw an error! have to fix that

home/k9s.nix

@@ -13,7 +13,7 @@
       skipLatestRevCheck = false;
       
       skin = {
-        catppuccin-mocha = ./defaults/k9s/catppuccin-mocha.yml;
+        catppuccin-mocha = ../defaults/k9s-skins/catppuccin-mocha.yml;
       };
 
       ui = {