Introduce React components library and configure monorepo (#23)

- Prepare Lerna configuration
- Prepare components setup for testing and development live-reload
- Add stylebook to showcase React components
- Use global ESLint configuration
- Add styled-components for both Dashboard and Components library

Author: pkosiec

.eslintrc.js

@@ -0,0 +1,20 @@
+module.exports = {
+  extends: [
+    "react-app",
+    "react-app/jest",
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+  ],
+  parser: "@typescript-eslint/parser",
+  plugins: ["@typescript-eslint"],
+  overrides: [
+    {
+      // ignore empty interfaces for React components
+      files: ["*.tsx"],
+      rules: {
+        "@typescript-eslint/no-empty-interface": "off",
+      },
+    },
+  ],
+  ignorePatterns: ["generated", "coverage", "build", "dist"],
+};

.github/workflows/branch-build.yaml

@@ -1,16 +1,11 @@
 name: Main branch
 
-# TODO: Temporary solution. Remove it once migration to Lerna is completed 
-defaults:
-  run:
-    working-directory: dashboard
-
 on:
   push:
     paths-ignore:
       - "LICENSE"
       - "CODEOWNERS"
-      - "README.md"
+      - "**.md"
     branches:
       - main
       - "release-*"
@@ -37,12 +32,17 @@ jobs:
           cache-dependency-path: '**/package-lock.json'
 
       - name: Install dependencies
-        run: npm install
+        run: |
+          npm install
+          npm run bootstrap
 
       - name: Lint code
         run: npm run lint
 
-      - name: Build application
+      - name: Test code
+        run: npm run test
+
+      - name: Build applications
         # Unfortunately, the only way to not treat warnings as errors
         # on CI is setting `CI` env to `false`.
         # See the issue https://github.com/facebook/create-react-app/issues/3657
@@ -51,11 +51,11 @@ jobs:
       - name: Set Docker tag env
         run: echo "DOCKER_TAG=${GITHUB_SHA:0:7}" >> $GITHUB_ENV
 
-      - name: Build Docker image
-        run: npm run docker:build-image
+      - name: Build Docker images
+        run: npm run docker:build
 
       - name: Log into registry
         run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
 
-      - name: Push Docker image
-        run: npm run docker:push-image
+      - name: Push Docker images
+        run: npm run docker:push