fix: replicated start.bat fix for build.bat

Author: f7f376a1fcd0d0e11a10ed1b6577c9

build.bat

@@ -1,6 +1,20 @@
 @echo off
 REM This script sets the necessary environment variable and starts the React app
 
-echo Setting OpenSSL legacy provider and starting the app...
-set NODE_OPTIONS=--openssl-legacy-provider
-yarn build
+echo Setting OpenSSL legacy provider and increasing memory allocation...
+set "NODE_OPTIONS=--openssl-legacy-provider --max-old-space-size=4096"
+
+REM Run lessc directly using local node_modules
+call node_modules\.bin\lessc --js --clean-css="--s1 --advanced" src/styles/themes/main.less public/themes/main.css
+if errorlevel 1 goto error
+
+echo Theme built successfully, starting the app...
+call yarn run craco build
+if errorlevel 1 goto error
+goto end
+
+:error
+echo Failed with error #%errorlevel%.
+exit /b %errorlevel%
+
+:end