Describe the bug
After installing an extension from a deeplink if you refresh the browser the installation dialog shows again. It appears to be holding on to the deeplink params in the url. We should add logic to clear these deeplink params from the url after its launched so it doesn't pick it up again on refresh.

To Reproduce
Steps to reproduce the behavior:

1. Install an extension from a deeplink
2. See installation dialog and environment variable dialog if it has env variables to set.
3. Cancel install or proceed successfully either is fine to close the modal and finish extension installation process.
4. Refresh browser
5. See installation dialogs reappear again.

Expected behavior
After launching an extension install from a deeplink it shouldn't show again on refresh.

Please provide following information:

• OS & Arch: Mac arm
• Interface: UI
• Version: v1.9.1 (goes back further)
• Extensions enabled: Developer
• Provider & Model: Claude

Additional context
None