Auto copy the authorize code when open it in Google

**Describe the feature you want:**
## Open the pluning means copy the code to the clipboard!

**Why do you want this feature in Authenticator?**
If the code can be copied to the clipboard `automatically` when we open the plugin in google by hot key, we needn‘t move mouse to the upper right corner to copy the code with one more step.

I believe this will be very convenient.