Add updated spec file for AppNavigation and AppHeader component

Signed-off-by: Sukanya Pandey <sukapan1@in.ibm.com>
Change-Id: I529fab5463692e70dea23536b7b0ca1ce52c67a7
diff --git a/tests/unit/__snapshots__/AppHeader.spec.js.snap b/tests/unit/__snapshots__/AppHeader.spec.js.snap
index 8300ac1..3e5c91e 100644
--- a/tests/unit/__snapshots__/AppHeader.spec.js.snap
+++ b/tests/unit/__snapshots__/AppHeader.spec.js.snap
@@ -50,6 +50,7 @@
        
       <b-navbar-nav>
         <b-navbar-brand
+          class="mr-0"
           data-test-id="appHeader-container-overview"
           to="/"
         >
@@ -59,6 +60,8 @@
             src="@/assets/images/logo-header.svg"
           />
         </b-navbar-brand>
+         
+        <!---->
       </b-navbar-nav>
        
       <b-navbar-nav
diff --git a/tests/unit/__snapshots__/AppNavigation.spec.js.snap b/tests/unit/__snapshots__/AppNavigation.spec.js.snap
index d84d436..2aa19c4 100644
--- a/tests/unit/__snapshots__/AppNavigation.spec.js.snap
+++ b/tests/unit/__snapshots__/AppNavigation.spec.js.snap
@@ -430,6 +430,20 @@
               </li>
               <li
                 class="nav-item"
+                data-test-id="nav-item-security-settings"
+              >
+                <a
+                  class="nav-link"
+                  href="/configuration/security-settings"
+                  target="_self"
+                >
+                  
+                appNavigation.securitySettings
+              
+                </a>
+              </li>
+              <li
+                class="nav-item"
                 data-test-id="nav-item-snmp-settings"
               >
                 <a
@@ -511,6 +525,20 @@
             >
               <li
                 class="nav-item"
+                data-test-id="nav-item-client-sessions"
+              >
+                <a
+                  class="nav-link"
+                  href="/access-control/client-sessions"
+                  target="_self"
+                >
+                  
+                appNavigation.clientSessions
+              
+                </a>
+              </li>
+              <li
+                class="nav-item"
                 data-test-id="nav-item-ldap"
               >
                 <a
@@ -996,6 +1024,20 @@
               </li>
               <li
                 class="nav-item"
+                data-test-id="nav-item-security-settings"
+              >
+                <a
+                  class="nav-link"
+                  href="/configuration/security-settings"
+                  target="_self"
+                >
+                  
+                appNavigation.securitySettings
+              
+                </a>
+              </li>
+              <li
+                class="nav-item"
                 data-test-id="nav-item-snmp-settings"
               >
                 <a
@@ -1077,6 +1119,20 @@
             >
               <li
                 class="nav-item"
+                data-test-id="nav-item-client-sessions"
+              >
+                <a
+                  class="nav-link"
+                  href="/access-control/client-sessions"
+                  target="_self"
+                >
+                  
+                appNavigation.clientSessions
+              
+                </a>
+              </li>
+              <li
+                class="nav-item"
                 data-test-id="nav-item-ldap"
               >
                 <a