What is this PR about?

This PR fixes the infinite loading spinner and redirection failure that occurs after a successful login (or invitation acceptance) on browsers like Safari and Firefox.

By awaiting the router.push("/dashboard/home") promise and removing the finally block that prematurely resets the loading state, we prevent React from re-rendering the component mid-flight. This ensures that the Next.js client-side navigation is not silently aborted.

Checklist

Before submitting this PR, please make sure that:

• You created a dedicated branch based on the canary branch.
• You have read the suggestions in the CONTRIBUTING.md file https://github.com/Dokploy/dokploy/blob/canary/CONTRIBUTING.md#pull-request
• You have tested this PR in your local instance. If you have not tested it yet, please do so before submitting. This helps avoid wasting maintainers' time reviewing code that has not been verified by you.

Issues related (if applicable)

closes #4220
closes #4479

Screenshots (if applicable)

(No UI changes, fixes navigation logic)