Replace settings save functionality with simple toast messages
### Problem Currently our flow of saving a setting, actually involves pressing the save button. To make it worse, often the save button is out of view. This feels old and redundant and should be automated, for a more efficient flow which gives the user more confidence. This becomes especially visible in the auto devops demo: https://youtu.be/AgKc_KUQEtE ### Proposal Replace settings save functionality with simple temporary toast messages. - [ ] This will need us figuring out the banner/toast usage/paradigm cc: @tauriedavis @sarrahvesselov @mydigitalself
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