moved nixvim into own home-manager module.

moved pass store location.

modules/home-manager/nvim/gitsigns.nix

@@ -0,0 +1,25 @@
+{
+  configs,
+  pkgs,
+  ...
+}: {
+  programs.nixvim = {
+    plugins.gitsigns = {
+      enable = true;
+    };
+    plugins.which-key.registrations = {
+      "<leader>g" = "+git";
+    };
+    keymaps = [
+      {
+        action = ":Gitsigns toggle_current_line_blame<CR>";
+        key = "<leader>gb";
+        mode = "n";
+        options = {
+          silent = true;
+          desc = "toggle git blame";
+        };
+      }
+    ];
+  };
+}