[mod] NVM: dev-tools pre-installed in NVM's node installation

The Node.js installation in the NVM environment can be used by IDEs and other
developer tasks.  The required developer packagaes are added to the file
./.nvm_packages and will be installed when Node.js is installed.  Initial we
start with:

- eslint

Having a dedicated developer enviroment, provided by nvm makes it easy to
integrate Node.js packages into various IDEs.  One example is shown in the
.dir-locals.el which is used by emacs.

[1] https://github.com/nvm-sh/nvm#default-global-packages-from-file-while-installing
[2] https://eslint.org

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

.dir-locals.el

@@ -94,12 +94,9 @@
 
  (js-mode
   . ((eval . (progn
-               ;; flycheck should use the (local) NVM environment (see nvm-dir)
+               ;; use nodejs from the (local) NVM environment (see nvm-dir)
                (nvm-use-for-buffer)
                (setq-local js-indent-level 2)
-               ;; flycheck should use the eslint checker from simple theme
-               (setq-local flycheck-javascript-eslint-executable
-                           (expand-file-name "searx/static/themes/simple/node_modules/.bin/eslint" prj-root))
                (flycheck-mode)
                ))))