Chore: Add link to product docs on sidebar (#5119)

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/javascript/dashboard/components/layout/sidebarComponents/Primary.vue

@@ -16,6 +16,13 @@
       />
     </nav>
     <div class="menu vertical user-menu">
+      <primary-nav-item
+        v-if="!isACustomBrandedInstance"
+        icon="book-open-globe"
+        name="DOCS"
+        :open-in-new-page="true"
+        :to="helpDocsURL"
+      />
       <notification-bell @open-notification-panel="openNotificationPanel" />
       <agent-details @toggle-menu="toggleOptions" />
       <options-menu
@@ -34,7 +41,7 @@ import PrimaryNavItem from './PrimaryNavItem';
 import OptionsMenu from './OptionsMenu';
 import AgentDetails from './AgentDetails';
 import NotificationBell from './NotificationBell';
-
+import wootConstants from 'dashboard/constants';
 import { frontendURL } from 'dashboard/helper/URLHelper';
 
 export default {
@@ -46,6 +53,10 @@ export default {
     NotificationBell,
   },
   props: {
+    isACustomBrandedInstance: {
+      type: Boolean,
+      default: false,
+    },
     logoSource: {
       type: String,
       default: '',
@@ -69,6 +80,7 @@ export default {
   },
   data() {
     return {
+      helpDocsURL: wootConstants.DOCS_URL,
       showOptionsMenu: false,
     };
   },