build(deps): add react-router-dom

Install react-router-dom to support client-side navigation. This is a prerequisite for implementing the multi-step authentication flow and other routed features.

Additionally, this commit includes minor copy improvements to the password reset forms for better clarity.

adventure-rental-app/src/ForgotPasswordForm.jsx

@@ -101,7 +101,7 @@ const ForgotPasswordForm = ({ showLogin, showReset }) => {
         {success && <p className="text-sm text-green-400 text-center">{success}</p>}
         <div>
           <button type="submit" disabled={loading || !isFormValid} className="group relative w-full flex justify-center py-3 px-4 border border-transparent text-sm font-bold rounded-md text-white bg-brand-orange hover:bg-opacity-90 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-brand-orange focus:ring-offset-gray-800 disabled:opacity-60">
-            {loading ? 'Sending...' : 'Reset Password'}
+            {loading ? 'Sending...' : 'Send Reset Link'}
           </button>
         </div>
         <p className="text-center text-sm text-gray-300">