Add npm ci to GitHub actions.

Formatting currently being forced to preserve line endings because for
whatever reason that's only causing problems in CI.

.github/workflows/build.yml

@@ -15,6 +15,11 @@ jobs:
         with:
           python-version: "3.10"
 
+      - name: Set up Node
+        uses: actions/setup-node@v2
+        with:
+          node-version: "16"
+
       - name: Install environment
         run: |
           python -m venv ./venv
@@ -40,6 +45,11 @@ jobs:
         run: |
           [IO.File]::WriteAllLines($pwd.path + "\resources\buildnumber", $env:GITHUB_RUN_NUMBER)
 
+      - name: npm ci
+        run: |
+          cd client
+          npm ci
+
       - name: Build binaries
         run: |
           ./venv/scripts/activate

.github/workflows/release.yml

@@ -17,6 +17,11 @@ jobs:
         with:
           python-version: "3.10"
 
+      - name: Set up Node
+        uses: actions/setup-node@v2
+        with:
+          node-version: "16"
+
       - name: Install environment
         run: |
           python -m venv ./venv
@@ -32,6 +37,11 @@ jobs:
         run: |
           New-Item -ItemType file resources\final
 
+      - name: npm ci
+        run: |
+          cd client
+          npm ci
+
       - name: mypy game
         run: |
           ./venv/scripts/activate

client/package.json

@@ -29,6 +29,7 @@
   "scripts": {
     "start": "react-scripts start",
     "build": "react-scripts build",
+    "prepare": "eslint src",
     "test": "react-scripts test",
     "eject": "react-scripts eject",
     "electron": "wait-on tcp:3000 && electron ."
@@ -36,6 +37,9 @@
   "eslintConfig": {
     "extends": "react-app"
   },
+  "prettier": {
+    "endOfLine": "auto"
+  },
   "browserslist": {
     "production": [
       ">0.2%",