text: Title: Disable workflow save button if there were no changes since last save
  Body: **Is your feature request related to a problem? Please describe.**
  Its just a minor frontend/ui change
  Save workflow button in upper right corner is always clickable and changes workflow version, even if there were no changes since last version
  
  **Describe the solution you'd like**
  If there were no changes, button should be grayed out and not clickable
  
  **Describe alternatives you've considered**
  Live with it, tbh not a big problem
  
  **Additional context**
  https://github.com/user-attachments/assets/13a92952-00bc-48a5-89ee-b2298ca7f0a6