refactor: delete old Ansible configuration

- Remove the Ansible files.
- Move the Nix files to the root level of the repository.

Refs: #39

home-manager/modules/common.nix

@@ -0,0 +1,178 @@
+{ config, lib, pkgs, ... }:
+{
+  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+    "intelephense"
+    "postman"
+  ];
+
+  home.packages = with pkgs; [
+    bottom
+    ctop
+    delta
+    file
+    fzf
+    gcc
+    gh
+    git
+    git-crypt
+    just
+    tree-sitter
+    htop
+    jq
+    lua
+    mysql
+    neofetch
+    nodejs
+    php81
+    platformsh
+    postman
+    pulumi-bin
+    pv
+    ripgrep
+    tldr
+    tmuxinator
+    tree
+    unzip
+    wget
+    yarn
+    zoxide
+
+    # LSP
+    gopls
+    html-tidy
+    # nodePackages."@ansible/ansible-language-server"
+    nodePackages."@tailwindcss/language-server"
+    nodePackages.bash-language-server
+    nodePackages.dockerfile-language-server-nodejs
+    nodePackages.eslint
+    nodePackages.intelephense
+    nodePackages.markdownlint-cli
+    nodePackages.prettier
+    nodePackages.typescript
+    nodePackages.typescript-language-server
+    nodePackages.vls
+    nodePackages.vscode-langservers-extracted
+    nodePackages.yaml-language-server
+    php81Packages.phpcbf
+    php81Packages.phpcs
+    php81Packages.phpstan
+    rnix-lsp
+    shellcheck
+    sumneko-lua-language-server
+  ];
+
+  programs.bat.enable = true;
+
+  programs.neovim = {
+    enable = true;
+    plugins = let
+      phpactor = pkgs.vimUtils.buildVimPlugin {
+        name = "phpactor";
+        src = pkgs.fetchFromGitHub {
+          owner = "phpactor";
+          repo = "phpactor";
+          rev = "master";
+          sha256 = "0bgfwidrlaqxnjmk14gqc8b0mxh0c5xf098qcjz9mvw236n88xl7";
+        };
+      };
+
+      vim-astro = pkgs.vimUtils.buildVimPlugin {
+        name = "vim-astro";
+        src = pkgs.fetchFromGitHub {
+          owner = "wuelnerdotexe";
+          repo = "vim-astro";
+          rev = "main";
+          sha256 = "HyQ4i/T1uQmGurBqCpo8+ESVSVPsTrLQBxLe2OEYjcY=";
+        };
+      };
+    in
+    with pkgs.vimPlugins; [
+      vim-astro
+
+      comment-nvim
+      git-worktree-nvim
+      gitsigns-nvim
+      harpoon
+      impatient-nvim
+      indent-blankline-nvim
+      neogit
+      nvim-web-devicons
+      refactoring-nvim
+      rest-nvim
+      splitjoin-vim
+      vim-abolish
+      vim-highlightedyank
+      vim-polyglot
+      vim-repeat
+      vim-surround
+      vim-test
+      vim-tmux-navigator
+      vimux
+
+      # Debugging
+      nvim-dap
+      nvim-dap-ui
+      nvim-dap-virtual-text
+
+      # Treesitter
+      nvim-treesitter
+      nvim-treesitter-context
+      nvim-treesitter-textobjects
+
+      # LSP
+      null-ls-nvim
+      nvim-lspconfig
+      lsp-status-nvim
+
+      # Completion
+      cmp-buffer
+      cmp-cmdline
+      cmp-nvim-lsp
+      cmp-path
+      cmp-tabnine
+      cmp-treesitter
+      cmp-vsnip
+      cmp_luasnip
+      lspkind-nvim
+      nvim-cmp
+
+      # Snippets
+      luasnip
+
+      # Telescope
+      plenary-nvim
+      popup-nvim
+      telescope-file-browser-nvim
+      telescope-fzf-native-nvim
+      telescope-nvim
+      telescope-ui-select-nvim
+
+      # Git
+      # neogit
+
+      # Databases
+      vim-dadbod
+      vim-dadbod-ui
+      vim-dadbod-completion
+
+      # Themes
+      catppuccin-nvim
+      nightfox-nvim
+      onehalf
+    ];
+  };
+
+  home.sessionPath = [
+    "$HOME/.config/bin"
+  ];
+
+  xdg.configFile.bin = {
+    source = ../../../bin;
+    recursive = true;
+  };
+
+  xdg.configFile.nvim = {
+    source = ../../../config/neovim;
+    recursive = true;
+  };
+}