Add CI compilation

Author: gnikit

.github/workflows/main.yaml

@@ -14,6 +14,8 @@ jobs:
           node-version: ${{ matrix.node-version }}
       - name: Installing Extension
         run: yarn install
+      - name: Compile
+        run: yarn compile
       - name: Test Syntax Highlighting
         run: yarn test:grammar
       - name: Test Unittests