Merge pull request #21 from tsparticles/renovate/lit-element-3.x

fix(deps): update dependency lit-element to v3

Author: matteobruni

apps/lit/package.json

@@ -22,7 +22,7 @@
   "author": "The Polymer Authors",
   "license": "BSD-3-Clause",
   "dependencies": {
-    "lit-element": "^2.2.1"
+    "lit-element": "^3.0.0"
   },
   "devDependencies": {
     "@11ty/eleventy": "^2.0.0",