Implement Warning for Empty API Keys in Settings Tab

[mariovata]

Issue Description:

Problem:

In our web application's settings tab, users can set and unset API keys. Currently, there is no warning or validation mechanism to prevent users from accidentally setting their API keys to empty values. This can lead to unintended issues and disruptions in functionality.

Proposal:

I propose implementing a warning mechanism to alert users when they attempt to set their API keys to empty values within the settings tab of our web application. The warning should be similar to the mockup image provided.