Refactor configuration to be more modular.

TODO: Update the documentation in the README to reflect changes

modules/packages/nvim.nix

@@ -0,0 +1,44 @@
+{ pkgs, ... }:
+
+{
+  environment.persistence."/nix/persist".users.hu.directories = [
+    ".local/share/nvim"
+    ".local/state/nvim"
+  ];
+
+  environment.variables = {
+    EDITOR = "nvim";
+  };
+
+  home-manager.users.hu = {
+    programs.neovim = {
+      enable = true;
+      defaultEditor = true;
+      extraPackages = with pkgs; [
+        lua-language-server
+        nodePackages.intelephense
+        nodePackages.typescript-language-server
+        clang-tools
+        ripgrep
+        nil
+        gcc
+        basedpyright
+        rust-analyzer
+        zathura
+        git
+        texliveFull
+        luajitPackages.jsregexp
+        luajitPackages.luarocks
+        fd
+        texlab
+        haskell-language-server
+      ];
+    };
+
+    home.file."/home/hu/.config/nvim" = {
+      source = ../../dotfiles/nvim;
+      recursive = true;
+    };
+  };
+}
+