LibraryPanels: Adds folder filter to manage library panel page (#33560)

* LibraryPanels: Adds folder filter

* Refactor: Adds folder filter to library search

* Refactor: splits huge function into smaller functions

* LibraryPanels: Adds Panels Page to Manage Folder tabs (#33618)

* Chore: adds tests to LibraryPanelsSearch

* Refactor: Adds reducer and tests

* Chore: changes GrafanaThemeV2

* Refactor: pulls everything behind the feature toggle

* Chore: removes clear icon from FolderFilter

* Chore: adds filter to SortPicker

* Refactor: using useAsync instead

pkg/api/index.go

@@ -167,12 +167,15 @@ func (hs *HTTPServer) getNavTree(c *models.ReqContext, hasEditPerm bool) ([]*dto
 			Url:  hs.Cfg.AppSubURL + "/dashboard/snapshots",
 			Icon: "camera",
 		})
-		dashboardChildNavs = append(dashboardChildNavs, &dtos.NavLink{
-			Text: "Library panels",
-			Id:   "library-panels",
-			Url:  hs.Cfg.AppSubURL + "/library-panels",
-			Icon: "library-panel",
-		})
+
+		if hs.Cfg.IsPanelLibraryEnabled() {
+			dashboardChildNavs = append(dashboardChildNavs, &dtos.NavLink{
+				Text: "Library panels",
+				Id:   "library-panels",
+				Url:  hs.Cfg.AppSubURL + "/library-panels",
+				Icon: "library-panel",
+			})
+		}
 	}
 
 	navTree = append(navTree, &dtos.NavLink{