dependency update + adjust Playwright setup + fix linter issue (#3994)

update dependencies before next release

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Co-authored-by: Kristjan ESPERANTO <[email protected]>

Author: khassel

README.md

@@ -15,7 +15,7 @@
 
 MagicMirror² focuses on a modular plugin system and uses [Electron](https://www.electronjs.org/) as an application wrapper. So no more web server or browser installs necessary!
 
-![](https://magicmirror.builders/img/demo.gif)
+![Animated demonstration of MagicMirror²](https://magicmirror.builders/img/demo.gif)
 
 ## Documentation