Fix polling on windows (potentially)

.gitignore

 .vscode
-.env
\ No newline at end of file
+.env
+.DS_Store
\ No newline at end of file

init.sh

 #!/bin/sh
 
 cp ./backend/.env.docker.example ./backend/.env
-cp ./frontend/.env.example ./frontend/.env
\ No newline at end of file
+cp ./frontend/.env.example ./frontend/.env
+
+# Ueberpruefe, ob das Betriebssystem Windows ist
+if [ "$(uname -s)" = "MINGW"* ] || [ "$(uname -s)" = "CYGWIN"* ] || [ "$(uname -s)" = "MSYS"* ]; then
+    echo 'CHOKIDAR_USEPOLLING=true' >> ./frontend/.env
+else
+    echo 'CHOKIDAR_USEPOLLING=false' >> ./frontend/.env
+fi