Move CI scripts out of CI dir

.github/workflows/ci/linux.yml

@@ -1,21 +0,0 @@
-name: Build Linux Client
-
-on: [push, pull_request]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Clone source code
-        uses: actions/checkout@v1
-      - name: Use Node.js
-        uses: actions/setup-node@v1
-        with:
-          node-version: 10.x
-      - name: Install dependencies and build
-        run: |
-          npm install
-          npm run build --if-present
-          npm run build-desktop-linux

.github/workflows/ci/mac.yml

@@ -1,21 +0,0 @@
-name: Build macOS Client
-
-on: [push, pull_request]
-
-jobs:
-  build:
-
-    runs-on: macos-latest
-
-    steps:
-      - name: Clone source code
-        uses: actions/checkout@v1
-      - name: Use Node.js
-        uses: actions/setup-node@v1
-        with:
-          node-version: 10.x
-      - name: Install dependencies and build
-        run: |
-          npm install
-          npm run build --if-present
-          npm run build-desktop-darwin-nosign

.github/workflows/ci/standard.yml

@@ -1,26 +0,0 @@
-name: Node CI
-
-on: [push]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        node-version: [8.x, 10.x, 12.x]
-
-    steps:
-      - name: Clone source code
-        uses: actions/checkout@v1
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
-        with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install dependencies and build
-        run: |
-          npm install
-          npm run build --if-present
-        env:
-          CI: true

.github/workflows/ci/win.yml

@@ -1,21 +0,0 @@
-name: Build Windows Client
-
-on: [push, pull_request]
-
-jobs:
-  build:
-
-    runs-on: windows-latest
-
-    steps:
-      - name: Clone source code
-        uses: actions/checkout@v1
-      - name: Use Node.js
-        uses: actions/setup-node@v1
-        with:
-          node-version: 10.x
-      - name: Install dependencies and build
-        run: |
-          npm install
-          npm run build --if-present
-          npm run build-desktop-win