Development experience and build improvements

.editorconfig

@@ -0,0 +1,9 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

.eslintrc.json

@@ -0,0 +1,29 @@
+{
+  "parserOptions": {
+    "ecmaVersion": 2020,
+    "sourceType": "module"
+  },
+  "env": {
+    "es6": true,
+    "browser": true
+  },
+  "extends": ["eslint:recommended", "prettier"],
+  "plugins": ["svelte3", "prettier"],
+  "ignorePatterns": ["node_modules/"],
+  "overrides": [
+    {
+      "files": ["**/*.svelte"],
+      "processor": "svelte3/svelte3"
+    }
+  ],
+  "rules": {
+    "comma-dangle": ["error", "never"],
+    "no-console": "warn",
+    "no-unused-expressions": ["error", { "allowTernary": true }],
+    "no-return-assign": [2, "except-parens"],
+    "no-param-reassign": ["error", { "props": false }]
+  },
+  "globals": {
+    "NODE_ENV": true
+  }
+}

.gitignore

@@ -1,11 +1,13 @@
 /node_modules/
 /public/build/
+/dist
 
 .DS_Store
 
 .idea/
+.vscode
+
 .syncmetadata
-.vscode/launch.json
 public/.syncmetadata
 scripts/.syncmetadata
 src/.syncmetadata

.nolluprc.js

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+module.exports = {
+  hot: true,
+  contentBase: "dist",
+  publicPath: "build",
+  historyApiFallback: "__app.html",
+  port: 5000,
+};

.prettierignore

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+public
+package.json
+package-lock.json
+yarn.lock
+node_modules

.prettierrc

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+{
+  "semi": true,
+  "printWidth": 100,
+  "singleQuote": true,
+  "trailingComma": "none",
+  "tabWidth": 2,
+  "plugins": ["prettier-plugin-svelte"],
+  "svelteSortOrder": "scripts-markup-styles"
+}