fix: fix build.sh (close #1026)

web/build.sh

@@ -1,13 +1,12 @@
 #!/bin/sh
 
 version=$(cat VERSION)
-themes=$(cat THEMES)
-IFS=$'\n'
+pwd
 
-for theme in $themes; do
+while IFS= read -r theme; do
     echo "Building theme: $theme"
-    cd $theme
+    cd "$theme"
     npm install
     DISABLE_ESLINT_PLUGIN='true' REACT_APP_VERSION=$version npm run build
     cd ..
-done
+done < THEMES