some repo clean-up

.devcontainer/Dockerfile

@@ -1,4 +0,0 @@
-# See here for image contents: https://github.com/microsoft/vscode-dev-containers/blob/v0.205.2/containers/javascript-node/.devcontainer/base.Dockerfile
-# [Choice] Node.js version (use -bullseye variants on local arm64/Apple Silicon): 16, 14, 12, 16-bullseye, 14-bullseye, 12-bullseye, 16-buster, 14-buster, 12-buster
-ARG VARIANT=16-bullseye
-FROM mcr.microsoft.com/vscode/devcontainers/javascript-node:0-${VARIANT}

.devcontainer/devcontainer.json

@@ -1,42 +0,0 @@
-{
-  "name": "jarv.is",
-  "runArgs": ["--init"],
-  "build": {
-    "dockerfile": "Dockerfile",
-    // Update 'VARIANT' to pick a Node version: 16, 14, 12.
-    // Append -bullseye or -buster to pin to an OS version.
-    // Use -bullseye variants on local arm64/Apple Silicon.
-    "args": { "VARIANT": "16-bullseye" }
-  },
-  "features": {
-    "git": "os-provided"
-  },
-
-  // Use 'postCreateCommand' to run commands after the container is created.
-  "postStartCommand": "yarn install --frozen-lockfile && ./node_modules/.bin/next telemetry disable",
-
-  // Use 'forwardPorts' to make a list of ports inside the container available locally.
-  "forwardPorts": [3000],
-
-  "portsAttributes": {
-    "3000": {
-      "label": "next dev",
-      "onAutoForward": "notify"
-    }
-  },
-
-  // Set *default* container specific settings.json values on container create.
-  "settings": {
-    "terminal.integrated.shell.linux": "/bin/zsh"
-  },
-
-  // Add the IDs of extensions you want installed when the container is created.
-  "extensions": [
-    "dbaeumer.vscode-eslint",
-    "divlo.vscode-styled-jsx-languageserver",
-    "divlo.vscode-styled-jsx-syntax",
-    "editorconfig.editorconfig",
-    "esbenp.prettier-vscode",
-    "stylelint.vscode-stylelint"
-  ]
-}