Testing shx implementation to allow cross-platform working of the ins…

…tall process.

package.json

@@ -7,7 +7,7 @@
   "scripts": {
     "_cd:docs": "cd userguide &&",
     "_check:format": "npx prettier --check .??* *.md",
-    "_cp:bs-rfs": "cp -R node_modules/bootstrap/scss/vendor/* assets/_vendor/bootstrap/scss/",
+    "_cp:bs-rfs": "shx cp -R node_modules/bootstrap/scss/vendor/* assets/_vendor/bootstrap/scss/",
     "_mkdir:hugo-mod": "npx mkdirp ../github.com/FortAwesome/Font-Awesome ../github.com/twbs/bootstrap",
     "_prebuild": "npm run _cp:bs-rfs",
     "build:preview": "npm run cd:docs build:preview",
@@ -37,7 +37,8 @@
   "spelling": "cSpell:ignore docsy hugo fortawesome fontawesome userguide ",
   "dependencies": {
     "@fortawesome/fontawesome-free": "6.4.2",
-    "bootstrap": "5.2.3"
+    "bootstrap": "5.2.3",
+    "shx": "^0.3.4"
   },
   "devDependencies": {
     "hugo-extended": "0.120.4",