feat: dev container support (#734)

* chore: add devcontainer for Anubis

Signed-off-by: Xe Iaso <me@xeiaso.net>

* chore(devcontainer): ensure user can write to $HOME

Signed-off-by: Xe Iaso <me@xeiaso.net>

* chore(devcontainer): forward ports, add launch config

Signed-off-by: Xe Iaso <me@xeiaso.net>

* chore(devcontainer): add playwright deps

Signed-off-by: Xe Iaso <me@xeiaso.net>

* docs: document devcontainer usage

Signed-off-by: Xe Iaso <me@xeiaso.net>

* chore: spelling

Signed-off-by: Xe Iaso <me@xeiaso.net>

* ci(devcontainer): fix action references

Signed-off-by: Xe Iaso <me@xeiaso.net>

* chore(devcontainer): fix ko on arm64

Signed-off-by: Xe Iaso <me@xeiaso.net>

---------

Signed-off-by: Xe Iaso <me@xeiaso.net>

.devcontainer/README.md

@@ -0,0 +1,13 @@
+# Anubis Dev Container
+
+Anubis offers a [development container](https://containers.dev/) image in order to make it easier to contribute to the project. This image is based on [Xe/devcontainer-base/go](https://github.com/Xe/devcontainer-base/tree/main/src/go), which is based on Debian Bookworm with the following customizations:
+
+- [Fish](https://fishshell.com/) as the shell complete with a custom theme
+- [Go](https://go.dev) at the most recent stable version
+- [Node.js](https://nodejs.org/en) at the most recent stable version
+- [Atuin](https://atuin.sh/) to sync shell history between your host OS and the development container
+- [Docker](https://docker.com) to manage and build Anubis container images from inside the development container
+- [Ko](https://ko.build/) to build production-ready Anubis container images
+- [Neovim](https://neovim.io/) for use with Git
+
+This development container is tested and known to work with [Visual Studio Code](https://code.visualstudio.com/). If you run into problems with it outside of VS Code, please file an issue and let us know what editor you are using.