Button when resetting password should go back to sign in

[anikbrazeau]

Description

When resetting password, don't expect to end up on homepage.

Steps to reproduce

1. Go to GC Forms
2. Try to sign in
3. Reset password
4. Click on Return to homepage once on page with email link sent

**## Details

• Browser: Edge
• Operating system: Mac
• Environment: Staging
• Language: French
• Viewport: Desktop**

Expected behaviour

Flow that leads you to sign in?

Screenshots or videos

[Abi-Nada]

This currently persists in Production (not a bug) - going to descope from the App Router work, but we'll keep it in New Issues to be re-prioritized