feat: integrate first GA workflow

.github/workflows/main.yml

@@ -0,0 +1,26 @@
+name: React App CI
+
+on:
+    # Triggers the workflow on push or pull request events but only for the master branch
+    push:
+        branches: [main]
+    pull_request:
+        branches: [main]
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v3
+
+            - name: Format
+              run: npm run prettier
+
+            - name: lint
+              run: npm run lint
+
+            - name: typescript
+              run: npm run typescript
+
+            - name: build
+              run: npm run build --if-present