feat: changed header logo to go to self-assessment (#153)

Co-authored-by: Tom Whittington <[email protected]>

src/Dfe.ContentSupport.Web/Views/Shared/_CsHeader.cshtml

@@ -1,7 +1,7 @@
 <div class="dfe-header">
     <div class="dfe-width-container dfe-header__container">
         <div class="dfe-header__logo">
-            <a class="dfe-header__link dfe-header__link--service " href="/" aria-label="DfE homepage">
+            <a class="dfe-header__link dfe-header__link--service " href="/self-assessment" aria-label="DfE homepage">
                 <img src="/assets/images/dfe-logo.png" class="dfe-logo" alt="DfE Homepage">
                 <img src="/assets/images/dfe-logo-alt.png" class="dfe-logo-hover" alt="DfE Homepage">
             </a>