adding

public/spritemap.js

@@ -1 +1,13 @@
-(self.webpackChunkplain_ui=self.webpackChunkplain_ui||[]).push([[355],{256:()=>{}}]);
+(self["webpackChunkplain_ui"] = self["webpackChunkplain_ui"] || []).push([["spritemap"],{
+
+/***/ "?4e0c":
+/*!******************************!*\
+  !*** spritemap-dummy-module ***!
+  \******************************/
+/***/ (() => {
+
+
+
+/***/ })
+
+}]);

webpack.mix.js

@@ -17,7 +17,7 @@ require('laravel-mix-purgecss')
 
 mix.webpackConfig({
     plugins: [
-        new SvgSpritemapPlugin('src/icons/svg/*.svg', {
+        new SvgSpritemapPlugin('src/icons/mono-icons/svg/*.svg', {
             output: {
                 filename: 'symbol-defs.svg',
                 chunk: {