fix: do not import extraneous-dependencies

Author: aminya

package.json

@@ -40,7 +40,8 @@
     "@rocket/cli": "^0.5.2",
     "@rocket/core": "^0.1.1",
     "@rocket/launch": "^0.4.0",
-    "@rocket/search": "^0.3.0"
+    "@rocket/search": "^0.3.0",
+    "lit-element": "^2.4.0"
   },
   "devDependencies": {
     "@types/atom": "^1.40.7",
@@ -57,6 +58,7 @@
     "markdown-it": "^12.0.4",
     "markdown-it-prism": "^2.1.4",
     "patch-package": "^6.4.4",
+    "plugins-manager": "^0.2.0",
     "rollup-plugin-esbuild": "^2.6.1",
     "typedoc": "^0.20.28",
     "typedoc-plugin-markdown": "^3.6.0",