text: Title: Local Install from script doesn't work.  Problem with password and file permissions 
  Body: 
  **When Submitting please remove every thing above this line**
  
  
  # 🐛 Bug Report
  
  * [x] 📁 I've Included a ZIP file containing my librephotos `log` files
  * [ X] ❌ I have looked for similar issues (including closed ones)
  * [x] 🎬 (If applicable) I've provided pictures or links to videos that clearly demonstrate the issue 
  
  ## 📝 Description of issue:
  
  Started with a completely fresh and fully updated Debian install. I followed the instructions for the local Install.  Once install is done the web page is accessible but I can't get past the login screen.  
  
  Here is what I have done to try and fix it. I've narrowed down two issues.
  
  1. Only the front end service is running. The backend service is down because the worker service is down.  The worker service is down because it can't run librephotos-worker.  Looking at the file and the permissions are wrong.  CHMOD ugo+x fixes the problem and all of the services can be started and run 
  
  I still can't get past the login screen. Mostly because I don't know the username and password.  Trying to run librephotos-cli reveals problem number 2.
  
  2. librephotos-cli crashes and has Django complaining about not having the environment variable "secretkey".  I have no clue where that is supposed to be set.  The instructions also do not explain where/when/how to set
  
  
  ## 🔁 How can we reproduce it:
  
  Fresh install of Debian and than follow the instructions for local Install.   I've done it three times with the same results.  I may have missed something in the instructions but I have followed them fairly closely.
  
  
  ## Please provide additional information:
  - 💻 Operating system:  Debian
  - ⚙ Architecture (x86 or ARM): x86
  - 🔢 Librephotos version: latest?  I used the install script based on the instructions for ocal install.
  - 📸 Librephotos installation method (Docker, Kubernetes, .deb, etc.): Local
      * 🐋 If Docker or Kubernets, provide docker-compose image tag:
  - 📁 How is you picture library mounted (Local file system (Type), NFS, SMB, etc.):  NFS
  - ☁ If you are virtualizing librephotos, Virtualization platform (Proxmox, Xen, HyperV, etc.):  Proxmox
  