nvim: initial config

modules/editors/nvim/config/options.nix

@@ -0,0 +1,14 @@
+{
+    config = {
+        globals.mapleader = " ";
+        viAlias = true;
+        vimAlias = true;
+
+        opts = {
+            number = true;         # Show line numbers
+            relativenumber = true; # Show relative line numbers
+
+            shiftwidth = 2;        # Tab width should be 2
+        };
+    };
+}