Enhancement: Activate picker mode by just clicking the extension icon #15
Description
Is your feature request related to a problem?
The current workflow requires opening the popup just to click the "Enable" button, which is an unnecessary step.
Describe the solution you'd like
Change the extension's behavior so that when the user clicks the main toolbar icon, it immediately activates the code picker on the page instead of opening the popup. The popup would still be accessible for changing settings, perhaps by right-clicking the icon.
Additional context
This is a more advanced change that would require rethinking the role of popup.js vs. background.js. The action in the manifest would need to be changed to not have a default_popup, and the activation logic would move to the chrome.action.onClicked listener in the background script.