Confirmation of secret change - Feature request

First off, great job! I really appreciate the work. Would it be possible to add a confirmation when changing a secret? It seems too easy to accidentally overwrite a secret. This might be more my use case than others, but I have a lot secrets that just get read and I want to avoid them being inadvertently changed when a user is copy/pasting them.

Two ideas:

1. Just a simple confirmation box before saving
2. Have the secrets displayed in a modal, non-editable mode which requires clicking an edit button to make changes.