add devcontainer and cleanup build

.devcontainer/configuration.yaml

@@ -0,0 +1,8 @@
+default_config:
+lovelace:
+  mode: yaml
+demo:
+sensor:
+  - platform: aftership
+    api_key: "c49c3d38-c6f9-465d-a114-d7907b7a4706"
+    # api_key: AFTERSHIP_APIKEY

.devcontainer/devcontainer.json

@@ -0,0 +1,32 @@
+// See https://aka.ms/vscode-remote/devcontainer.json for format details.
+{
+  "name": "Aftership Card Development",
+  "image": "ludeeus/devcontainer:monster-stable",
+  "context": "..",
+  "appPort": ["5000:5000", "9123:8123"],
+  "postCreateCommand": "npm install",
+  "runArgs": [
+    "-v",
+    "${env:HOME}${env:USERPROFILE}/.ssh:/tmp/.ssh" // This is added so you can push from inside the container
+  ],
+  "extensions": [
+    "github.vscode-pull-request-github",
+    "eamodio.gitlens",
+    "dbaeumer.vscode-eslint",
+    "esbenp.prettier-vscode",
+    "bierner.lit-html",
+    "runem.lit-plugin",
+    "auchenberg.vscode-browser-preview",
+    "davidanson.vscode-markdownlint",
+    "redhat.vscode-yaml"
+  ],
+  "settings": {
+    "files.eol": "\n",
+    "editor.tabSize": 4,
+    "terminal.integrated.shell.linux": "/bin/bash",
+    "editor.formatOnPaste": false,
+    "editor.formatOnSave": true,
+    "editor.formatOnType": true,
+    "files.trimTrailingWhitespace": true
+  }
+}

.devcontainer/ui-lovelace.yaml

@@ -0,0 +1,8 @@
+resources:
+  - url: http://127.0.0.1:5000/aftership-card.js
+    type: module
+views:
+  - cards:
+      - type: custom:aftership-card
+        title: Aftership Card Development
+        entity: sensor.aftership

.eslintrc.js

@@ -0,0 +1,16 @@
+module.exports = {
+    parser: '@typescript-eslint/parser',  // Specifies the ESLint parser
+    extends: [
+        'plugin:@typescript-eslint/recommended',  // Uses the recommended rules from the @typescript-eslint/eslint-plugin
+        'prettier/@typescript-eslint',  // Uses eslint-config-prettier to disable ESLint rules from @typescript-eslint/eslint-plugin that would conflict with prettier
+        'plugin:prettier/recommended',  // Enables eslint-plugin-prettier and displays prettier errors as ESLint errors. Make sure this is always the last configuration in the extends array.
+    ],
+    parserOptions: {
+        ecmaVersion: 2018,  // Allows for the parsing of modern ECMAScript features
+        sourceType: 'module',  // Allows for the use of imports
+        experimentalDecorators: true,
+    },
+    rules: {
+        "@typescript-eslint/camelcase": 0
+    }
+};

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,42 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+---
+
+<!-- READ THIS FIRST:
+- If you need additional help with this template please refer to https://www.home-assistant.io/help/reporting_issues/
+- Make sure you are running the latest version of Home Assistant before reporting an issue: https://github.com/home-assistant/home-assistant/releases
+- Provide as many details as possible. Do not delete any text from this template!
+-->
+
+**Checklist:**
+
+- [ ] I updated to the latest version available
+- [ ] I cleared the cache of my browser
+
+**Release with the issue:**
+
+**Last working release (if known):**
+
+**Browser and Operating System:**
+
+<!--
+Provide details about what browser (and version) you are seeing the issue in. And also which operating system this is on. If possible try to replicate the issue in other browsers and include your findings here.
+-->
+
+**Description of problem:**
+
+<!--
+Explain what the issue is, and how things should look/behave. If possible provide a screenshot with a description.
+-->
+
+**Javascript errors shown in the web inspector (if applicable):**
+
+```
+
+```
+
+**Additional information:**

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,7 +1,9 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-
+title: ''
+labels: feature request
+assignees: ''
 ---
 
 **Is your feature request related to a problem? Please describe.**
@@ -14,4 +16,4 @@ A clear and concise description of what you want to happen.
 A clear and concise description of any alternative solutions or features you've considered.
 
 **Additional context**
-Add any other context or screenshots about the feature request here.
+Add any other context or screenshots about the feature request here.

.gitignore

@@ -1,2 +1,3 @@
 /node_modules/
-.rpt2_cache/
+/.rpt2_cache/
+package-lock.json

.prettierrc.js

@@ -0,0 +1,7 @@
+module.exports = {
+    semi: true,
+    trailingComma: 'all',
+    singleQuote: true,
+    printWidth: 120,
+    tabWidth: 2,
+};

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019 Custom cards for Home Assistant
+Copyright (c) 2019 Ian Richardson for Home Assistant
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal