Add GitHub Actions workflows for testing

Three new workflows have been added for GitHub Actions to run client, e2e, and electron tests. They are configured to trigger on push events to alpha, beta, rc, and main branches or on pull requests to those same branches. All workflows run on the latest version of Ubuntu and use Node.js version 18.x.

.github/workflows/test-client.yml

@@ -0,0 +1,25 @@
+name: Client Tests
+
+on:
+  push:
+    branches: [ alpha, beta, rc, main ]
+  pull_request:
+    branches: [ alpha, beta, rc, main ]
+
+jobs:
+  test-client:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18.x]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install dependencies
+        run: npm install
+      - name: Run Client tests
+        run: npm run test:client

.github/workflows/test-e2e.yml

@@ -0,0 +1,25 @@
+name: e2e Tests
+
+on:
+  push:
+    branches: [ alpha, beta, rc, main ]
+  pull_request:
+    branches: [ alpha, beta, rc, main ]
+
+jobs:
+  test-e2e:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18.x]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install dependencies
+        run: npm install
+      - name: Run e2e tests
+        run: npm run test:e2e

.github/workflows/test-electron.yml

@@ -0,0 +1,25 @@
+name: Electron Tests
+
+on:
+  push:
+    branches: [ alpha, beta, rc, main ]
+  pull_request:
+    branches: [ alpha, beta, rc, main ]
+
+jobs:
+  test-electron:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18.x]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install dependencies
+        run: npm install
+      - name: Run Electron tests
+        run: npm run test:electron