Added gitea action

.gitea/workflows/build.yaml

@@ -0,0 +1,25 @@
+on:
+  - push
+
+jobs:
+  build:
+    name: Build the server
+    runs-on: 'docker'
+    container:
+      node:current-alpine
+    steps:
+      - run: apk add git tar cmake make g++
+      - uses: actions/checkout@v3
+      - run: npm ci
+        working-directory: frontend
+      - run: npm run build
+        working-directory: frontend
+      - run: mkdir build
+      - run: cmake -DCMAKE_BUILD_TYPE=Release ..
+        working-directory: build
+      - run: cmake --build . -j
+        working-directory: build
+      - uses: actions/upload-artifact@v3
+        with:
+          name: fileserver
+          path: build/fileserver