ci: split jobs into build/check/test

Also remove the dependency on xvfb as we don't need a running X server at the moment.

.github/workflows/build.yml

@@ -1,4 +1,4 @@
-name: Build Binaries
+name: Build Unsigned Binaries
 
 on:
   push:

.github/workflows/check.yml

@@ -0,0 +1,22 @@
+name: Run Code Quality Checks
+
+on: [push, workflow_dispatch]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Use Node.js 22.x
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22.x
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run code quality checks
+        run: npm run lint

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: Test Electron App
+name: Run Tests
 
 on: [push, workflow_dispatch]
 
@@ -18,13 +18,5 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
-      - name: Install system dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y xvfb libgbm-dev
-
       - name: Run tests
-        run: xvfb-run --auto-servernum npm test
-
-      - name: Run code quality checks
-        run: xvfb-run --auto-servernum npm run lint
+        run: npm run test:no-watch