On fleetdm.com, update links to point to Fleet Sandbox (#7321)

- Update /get-started to /try-fleet/register in 2 places on website

website/views/layouts/layout.ejs

@@ -267,7 +267,7 @@
           <div class="d-flex flex-grow-1 flex-column">
             <div purpose="footer-nav" class="justify-content-between justify-content-sm-end order-l pb-xl-2 px-lg-0">
               <div class="flex-column">
-                <a href="/get-started" class="d-block pr-md-5 pr-sm-3 pb-2">Get started</a>
+                <a href="/try-fleet/register" class="d-block pr-md-5 pr-sm-3 pb-2">Get started</a>
                 <a href="/docs" class="d-block pr-md-5 pr-sm-3 pb-2">Docs</a>
                 <a href="/queries" class="d-block pr-md-5 pr-sm-3 pb-2">Query library</a>
                 <a href="/transparency" class="d-block pr-md-5 pr-sm-3 pb-2 pb-xl-0">Transparency</a>

website/views/pages/pricing.ejs

@@ -24,7 +24,7 @@
                   <a
                     style="max-width: 242px"
                     class="btn btn-block btn-lg btn-info my-3 mx-auto"
-                    href="/get-started"
+                    href="/try-fleet/register"
                     >Get started</a
                   >
                   <div