Revert "chore: Extract sidebar item injection token into separate package"

This reverts commit 8ac66380ad.

open-lens/src/main/index.ts

@@ -25,14 +25,13 @@ runInAction(() => {
   registerLensCore(di, environment);
 
   registerFeature(di,
-    loggerFeature,
+      loggerFeature,
   );
 
-  registerFeature(
-    di,
-    applicationFeature,
-    applicationFeatureForElectronMain,
-    messagingFeatureForMain,
+  registerFeature(di,
+      applicationFeature,
+      applicationFeatureForElectronMain,
+      messagingFeatureForMain,
   );
 
   try {

open-lens/src/renderer/index.ts

@@ -25,7 +25,6 @@ import { keyboardShortcutsFeature } from "@k8slens/keyboard-shortcuts";
 import { reactApplicationFeature } from "@k8slens/react-application";
 import { routingFeature } from "@k8slens/routing";
 import { loggerFeature } from "@k8slens/logger";
-import { clusterSidebarFeature } from "@k8slens/cluster-sidebar";
 
 const environment = "renderer";
 
@@ -50,8 +49,7 @@ runInAction(() => {
     keyboardShortcutsFeature,
     reactApplicationFeature,
     routingFeature,
-    metricsFeature,
-    clusterSidebarFeature,
+    metricsFeature
   );
 
   autoRegister({