added init files

.gitignore

@@ -1,22 +0,0 @@
-# Haupt .gitignore im Projekt-Root
-backend/node_modules/
-frontend/node_modules/
-backend/database/*.db
-backend/database/*.db-journal
-backend/dist/
-frontend/build/
-.env
-.env.local
-.env.development.local
-.env.test.local
-.env.production.local
-*.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-.DS_Store
-Thumbs.db
-.idea/
-.vscode/
-*.tgz
-*.tar.gz