docs: add link to main site in navbar DOC-2365 (#8696)

* docs: add link to main site in navbar DOC-2365

* docs: remove the new tab on the logo

Author: addetz

docusaurus.config.js

@@ -373,22 +373,13 @@ const config = {
         title: "",
         logo: {
           href: "/",
-          target: "self",
           width: 105,
           height: 48,
           alt: "Spectro cloud logo",
           src: getLightLogoPath(),
           srcDark: getDarkLogoPath(),
         },
         items: [
-          {
-            to: "/",
-            type: "docSidebar",
-            sidebarId: "docSidebar",
-            label: "Docs",
-            position: "left",
-            activeBaseRegex: "^(?!/api/).*$",
-          },
           {
             to: "/tutorials",
             type: "docSidebar",
@@ -410,6 +401,12 @@ const config = {
             label: "API",
             position: "left",
           },
+          {
+            type: "html",
+            position: "right",
+            value:
+              '<a href="https://spectrocloud.com" target="_blank" rel="noopener noreferrer" aria-label="Go to Spectro Cloud homepage (opens in a new tab)">spectrocloud.com <span aria-hidden="true">↗</span></a>',
+          },
           {
             href: "https://github.com/spectrocloud/librarium",
             position: "right",