add entry point redirect after saml/SSO

views/partials/account.html

 <header id="dialog-header" class="header" v-if="(active_view == 'account' && user)" v-cloak>
   <div v-cloak class="header-left pull-left">
-    <a class="btn btn-dark btn-md btn-round btn-icon" href="/spaces">
+    <a class="btn btn-dark btn-md btn-round btn-icon" href="<%= config.endpoint %>/spaces">
       <span class="icon icon-svg icon-sd6"></span>
     </a>
     <h5>Edit Account</h5>
   </div>
 
   <div class="header-right pull-right">
-    <a class="btn btn-dark btn-md btn-round btn-icon" href="/spaces">
+    <a class="btn btn-dark btn-md btn-round btn-icon" href="<%= config.endpoint %>/spaces">
       <span class="icon icon-cross-0"></span>
     </a>
   </div>

views/partials/login.html

 <header id="landing-header" class="header" v-cloak v-if="(active_view == 'login' || active_view == 'signup' || active_view == 'password-reset' || active_view == 'password-confirm')">
   <div class="header-left">
-    <a class="btn btn-transparent btn-nude" href="/"><img src="/images/sd6-logo-black.svg" width="190"></a>
+    <a class="btn btn-transparent btn-nude" href="<%= config.endpoint %>/"><img src="<%= config.endpoint %>/images/sd6-logo-black.svg" width="190"></a>
   </div>
 
   <div class="header-right pull-right">
-    <a v-if="active_view != 'login'" class="btn btn-md btn-dark btn-round" href="/login"><%= __("login") %></a>
-    <a v-if="active_view != 'signup'" class="btn btn-md btn-dark btn-round" href="/signup"><%= __("signup") %></a>
+    <a v-if="active_view != 'login'" class="btn btn-md btn-dark btn-round" href="<%= config.endpoint %>/login"><%= __("login") %></a>
+    <a v-if="active_view != 'signup'" class="btn btn-md btn-dark btn-round" href="<%= config.endpoint %>/signup"><%= __("signup") %></a>
   </div>
 </header>
 
@@ -36,7 +36,7 @@
         <div class="center alert alert-danger" v-if="login_error">{{login_error}}</div>
 
         <div style="margin-top:2em">
-          <a href="/password-reset">Forgot Password</a>
+          <a href="<%= config.endpoint %>/password-reset">Forgot Password</a>
         </div>
       </form>
     </div>

views/partials/team.html

 <div id="team" class="dialog in" style="padding:100px;z-index:20000;position:absolute;width:100%;min-height:100%;background-color:#fafafa" v-if="active_view == 'team' && user" v-cloak>
 
-  <a href="/spaces" class="btn btn-round btn-icon btn-stroke-darken btn-md pull-right" style="position:absolute;top:30px;right:30px"><span class="icon icon-cross-0"></span></a>
+  <a href="<%= config.endpoint %>/spaces" class="btn btn-round btn-icon btn-stroke-darken btn-md pull-right" style="position:absolute;top:30px;right:30px"><span class="icon icon-cross-0"></span></a>
 
   <h4>Spacedeck Team Management</h4>