Improve API Key Security on Accounts Page

[alexskr]

Currently, the API key is always visible on the accounts page. From a security standpoint, this poses a risk as the key could potentially be scraped or seen by someone looking over the user’s shoulder.

To enhance security, it would be better to conceal the API key by default and add a "Reveal" button or similar action to display it. This approach reduces the risk of unintentional exposure while still allowing users to access their key when necessary.