chore(nx): move all monorepo-style in subfolder for processing

apps/client/src/services/css_class_manager.ts

@@ -1,28 +0,0 @@
-const registeredClasses = new Set<string>();
-
-function createClassForColor(color: string | null) {
-    if (!color?.trim()) {
-        return "";
-    }
-
-    const normalizedColorName = color.replace(/[^a-z0-9]/gi, "");
-
-    if (!normalizedColorName.trim()) {
-        return "";
-    }
-
-    const className = `color-${normalizedColorName}`;
-
-    if (!registeredClasses.has(className)) {
-        // make the active fancytree selector more specific than the normal color setting
-        $("head").append(`<style>.${className}, span.fancytree-active.${className} { color: ${color} !important; }</style>`);
-
-        registeredClasses.add(className);
-    }
-
-    return className;
-}
-
-export default {
-    createClassForColor
-};