user/neovim: some changes

- replace ctrlp with fzf(-lsp)
- remove nerdtree
- use lsp_signature-nvim
- remove ts-comment and ts-jsdoc
  - performance issues
- add volar takeover

users/rin/packages.nix

@@ -42,11 +42,13 @@ in {
 
   home.packages = with pkgs; [
     dconf
+    fd
     ffmpeg
     gnupg
     kitty
     nodejs-16_x
     pamixer
+    ripgrep
     rnix-lsp
     unrar
     weechat