feat: refactor Sidebar into standalone reusable component (#5663)

🚀!

src/tests/packages/__snapshots__/utils.test.ts.snap

@@ -38,16 +38,16 @@ Object {
   "fileHandle": null,
   "gridSize": null,
   "isBindingEnabled": true,
-  "isLibraryMenuDocked": false,
-  "isLibraryOpen": false,
   "isLoading": false,
   "isResizing": false,
   "isRotating": false,
+  "isSidebarDocked": false,
   "lastPointerDownWith": "mouse",
   "multiElement": null,
   "name": "name",
   "openMenu": null,
   "openPopup": null,
+  "openSidebar": null,
   "pasteDialog": Object {
     "data": null,
     "shown": false,