chore: Fixed some missing dependencies in package.json

The backend was missing "reflect-metadata"
and the frontend was missing "@emotion/react" and "@emotion/server".

Also added JetBrains specific stuff in .gitignore

.gitignore

@@ -37,3 +37,6 @@ yarn-error.log*
 # project specific
 /backend/data/
 /data/
+
+# Jetbrains specific (webstorm)
+.idea/**/**

backend/package.json

@@ -27,6 +27,7 @@
     "passport": "^0.6.0",
     "passport-jwt": "^4.0.0",
     "passport-local": "^1.0.0",
+    "reflect-metadata": "^0.1.13",
     "rimraf": "^3.0.2"
   },
   "devDependencies": {

frontend/package.json

@@ -9,6 +9,8 @@
     "format": "prettier --write \"src/**/*.ts\""
   },
   "dependencies": {
+    "@emotion/react": "^11.10.4",
+    "@emotion/server": "^11.10.0",
     "@mantine/core": "^5.5.2",
     "@mantine/dropzone": "^5.5.2",
     "@mantine/form": "^5.5.2",