feat(nvim): switch back to copilot

modules/programs/nvim/plugins/coding.nix

@@ -76,8 +76,21 @@ with builtins;
         { plugin = cmp-nvim-lsp; }
         { plugin = cmp_luasnip; }
         {
-          plugin = codeium-nvim;
+          plugin = copilot-cmp;
           opts = { };
+          dependencies = [
+            {
+              plugin = copilot-lua;
+              opts = {
+                suggestion = { enabled = false; };
+                panel = { enabled = false; };
+              };
+              conf = /* lua */ ''
+                require("copilot").setup(opts)
+                vim.cmd("Copilot disable")
+              '';
+            }
+          ];
         }
         { plugin = friendly-snippets; }
         { plugin = lspkind-nvim; }