Update buttons visual design in deployment creation/update modals

This issue is related to 's comment received on 5.1 UI knowledge transfer session.

I did a quick research and I think we can improve buttons visual desing in some of our modals to provide better UX.

There are - at least - those modals which we should consider improving:

• Create Deployment modal
  

• Update Deployment modal
  

Especially the first one with call-to-action buttons in the same color.

How to change it is to be discussed. We can make Deploy button the same color as Cancel button or make it ligther green.

Links:

• https://ux.stackexchange.com/questions/91569/what-is-the-best-approach-for-showing-a-button-hierarchy-when-there-are-multiple - see

• https://vwo.com/blog/common-call-to-action-mistakes/ - see "#3 Too Many Call To Actions for One Page" section

• https://uxdesign.cc/ui-cheat-sheets-buttons-7329ed9d6112

• https://uxplanet.org/primary-secondary-action-buttons-c16df9b36150