Remove useless quotes

.env.example

@@ -1,11 +1,11 @@
 # Docker
-PROJECT_NAME="app"
+PROJECT_NAME=app
 
 # Database
 DB_PORT=5432
-DB_NAME="app"
-DB_USERNAME="app"
-DB_PASSWORD="Strong_Password_123456"
+DB_NAME=app
+DB_USERNAME=app
+DB_PASSWORD=Strong_Password_123456
 
 # Redis
 REDIS_PORT=6379
@@ -14,16 +14,16 @@ REDIS_PORT=6379
 BACK_PORT=4000
 
 # How to generate: require('crypto').randomBytes(32).toString('hex')
-JWT_SECRET="..."
-JWT_REFRESH_SECRET="..."
+JWT_SECRET=...
+JWT_REFRESH_SECRET=...
 
 # SMTP
-SMTP_HOST="smtp.example.com"
+SMTP_HOST=smtp.example.com
 SMTP_PORT=465
 SMTP_SECURE=true
-SMTP_USER="user@example.com"
-SMTP_PASSWORD="..."
-SMTP_FROM="noreply@example.com"
+SMTP_USER=user@example.com
+SMTP_PASSWORD=...
+SMTP_FROM=noreply@example.com
 
 # Frontend URL (for password reset links etc.)
-FRONTEND_URL="http://localhost:3000"
+FRONTEND_URL=http://localhost:3000