Adds eslint & plugins for typescript and vue. Adds cicd lint workflow

.eslintrc.cjs

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+module.exports = {
+  root: true,
+  overrides: [{
+    files: [ './**/*.{ts,vue}' ]
+  }],
+  env: {
+    browser: true
+  },
+  parser: 'vue-eslint-parser',
+  parserOptions: {
+    parser: "@typescript-eslint/parser",
+    sourceType: 'module',
+    project: true,
+    tsconfigRootDir: __dirname,
+    extraFileExtensions: [ '.vue' ],
+    vueFeatures: {
+      interpolationAsNonHTML: false
+    }
+  },
+  plugins: [ '@typescript-eslint' ],
+  extends: [
+    'plugin:vue/vue3-recommended',
+    'plugin:@typescript-eslint/recommended-type-checked',
+  ],
+  rules: {
+    indent: [ 'error', 2 ],
+    'max-len': [ 'error', {
+      code: 80,
+      tabWidth: 2
+    }],
+    'vue/multi-word-component-names': 'off',
+    'vue/component-tags-order': 'off',
+    'vue/max-attributes-per-line': ['warn', {
+      singleline: { max: 12 },
+      multiline: { max: 1 }
+    }],
+    'vue/block-order': ['warn', {
+      order: [ 'template', 'style', 'script' ]
+    }]
+  }
+}

.github/workflows/lint.yml

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+name: Lint
+on: push
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Dependencies
+        run: npm i
+      - name: Run ESLint
+        run: npm run lint