Overhaul install script

Signed-off-by: Severin Kaderli <severin@kaderli.dev>

.install/npm.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# 
+# SCRIPT NAME:
+# npm.sh
+#
+# AUTHOR:
+# Severin Kaderli <severin@kaderli.dev>
+#
+# DESCRIPTION:
+# Installs global npm packages
+
+CONFIG_NPM_PACKAGES=(
+    "@vue/cli"
+    "eslint"
+    "gatsby-cli"
+    "npm-check-updates"
+)
+
+output::section "NPM"
+
+if output::prompt "Do you want to install global npm packages?"; then
+    output::log "Installing ${#CONFIG_NPM_PACKAGES[@]} packages"
+    output::list ${CONFIG_NPM_PACKAGES[@]}
+    npm i -g "${CONFIG_NPM_PACKAGES[@]}" |& output::debug
+    output::success "Packages successfully installed"
+fi