refactor(plugins/mini): use nixvim mini with bufremove module

plugins/mini.bufremove/default.nix

@@ -1,13 +0,0 @@
-{ lib, pkgs, ... }:
-
-{
-  extra = {
-    packages = [
-      (import ./package.nix { inherit lib pkgs; })
-    ];
-
-    config = ''
-      require("mini.bufremove").setup()
-    '';
-  };
-}

plugins/mini.bufremove/package.nix

@@ -1,17 +0,0 @@
-{ pkgs, ... }:
-
-let
-  version = "unstable-20240525";
-in
-pkgs.vimUtils.buildVimPlugin {
-  inherit version;
-
-  name = "mini.bufremove";
-
-  src = pkgs.fetchFromGitHub {
-    owner = "echasnovski";
-    repo = "mini.bufremove";
-    rev = "e6044aa28e61d4dd9ec86194d6f81743eced0c1c";
-    hash = "sha256-IbX6pCFVdLSeOfCt7GbqOMLRLFqNiaBEnB6TXaumz8o=";
-  };
-}

plugins/mini.nix

@@ -0,0 +1,12 @@
+# homepage: https://github.com/echasnovski/mini.nvim
+# nixvim doc: https://nix-community.github.io/nixvim/plugins/mini.html
+_:
+
+{
+  opts = {
+    enable = true;
+
+    # https://github.com/echasnovski/mini.bufremove
+    modules.bufremove = { };
+  };
+}