Added Dev Container support (#474)

* Added dev container configuration

* Fixed container creation

* Added DevContainer detail to readme

* Ignoring dev container files

* Added playwright deps for tests

* Removed playwright installation #473

.dockerignore

@@ -9,9 +9,11 @@
 /build
 /out
 /.git
+/.devcontainer
 
 /.dockerignore
 /.gitignore
+/.gitattributes
 /Dockerfile
 /docker-compose.yml
 /*.sh