ci: split repo: make this repo frontend only again

frontend/compile-less.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+echo "Compiling all LESS files to CSS"
+
+function compile_less() {
+  FROM=$1
+  TO=${FROM/.*/.css}
+  SOURCE_MAP=${FROM/.*/.css.map}
+  echo "$FROM --> $TO & $SOURCE_MAP"
+  node_modules/less/bin/lessc "$FROM" "$TO" --source-map="$SOURCE_MAP"
+}
+
+export -f compile_less
+find src -type f -name '*.less' -exec bash -c 'compile_less $1' shell {} \;