[navigation]feat: update category to flatten menus in analytics(all) …

…use case (#2182) (#2184)

* feat: update category



* feat: add applications to all use case



---------


(cherry picked from commit 6f74002)

Signed-off-by: SuZhou-Joe <[email protected]>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

public/plugin_helpers/plugin_nav.tsx

@@ -21,6 +21,7 @@ export function registerAllPluginNavGroups(core: CoreSetup<AppPluginStartDepende
       id: observabilityOverviewID,
       category: undefined,
       order: 10,
+      showInAllNavGroup: true,
     },
   ]);
 
@@ -29,6 +30,7 @@ export function registerAllPluginNavGroups(core: CoreSetup<AppPluginStartDepende
       id: observabilityGettingStartedID,
       category: undefined,
       order: 20,
+      showInAllNavGroup: true,
     },
   ]);
 
@@ -37,6 +39,7 @@ export function registerAllPluginNavGroups(core: CoreSetup<AppPluginStartDepende
       id: observabilityApplicationsID,
       category: DEFAULT_APP_CATEGORIES.investigate,
       order: 400,
+      showInAllNavGroup: true,
     },
   ]);
 
@@ -48,6 +51,14 @@ export function registerAllPluginNavGroups(core: CoreSetup<AppPluginStartDepende
     },
   ]);
 
+  core.chrome.navGroup.addNavLinksToGroup(DEFAULT_NAV_GROUPS.all, [
+    {
+      id: observabilityIntegrationsID,
+      category: DEFAULT_APP_CATEGORIES.visualizeAndReport,
+      order: 500,
+    },
+  ]);
+
   core.chrome.navGroup.addNavLinksToGroup(DEFAULT_NAV_GROUPS.observability, [
     {
       id: observabilityMetricsID,
@@ -71,6 +82,13 @@ export function registerAllPluginNavGroups(core: CoreSetup<AppPluginStartDepende
       order: 400,
     },
   ]);
+  core.chrome.navGroup.addNavLinksToGroup(DEFAULT_NAV_GROUPS.all, [
+    {
+      id: observabilityNotebookID,
+      category: DEFAULT_APP_CATEGORIES.visualizeAndReport,
+      order: 400,
+    },
+  ]);
 
   core.chrome.navGroup.addNavLinksToGroup(DEFAULT_NAV_GROUPS.observability, [
     {