Access - Fix redirect URL fragment encoding for single-page applications

<p>Access now correctly preserves URL fragment characters (<code>/</code>, <code>?</code>, <code>=</code>, <code>&amp;</code>, <code>;</code>) when redirecting users back to an application after login. Previously, these characters were encoded with <code>encodeURIComponent</code>, which mangled fragment-based routes used by single-page applications (SPAs).</p> <p>For example, an SPA URL like <code>https://app.example.com/#/dashboard?tab=settings&amp;view=advanced</code> would previously redirect to a broken URL after login. This is now handled correctly.</p> <p>If your SPA users were experiencing broken navigation after authenticating through Access, this fix resolves the issue without any configuration changes.</p>