Use major version of actions

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2.3.3
+        uses: actions/checkout@v2
       -
         name: Gen dummy page
         run: |

.github/workflows/labels.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2.3.3
+        uses: actions/checkout@v2
       -
         name: Run Labeler
-        uses: crazy-max/ghaction-github-labeler@v3.1.0
+        uses: crazy-max/ghaction-github-labeler@v3

.github/workflows/pre-checkin.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2.3.3
+        uses: actions/checkout@v2
       -
         name: Install
         run: yarn install

tsconfig.json

@@ -3,7 +3,8 @@
     "target": "es6",
     "module": "commonjs",
     "lib": [
-      "es6"
+      "es6",
+      "dom"
     ],
     "newLine": "lf",
     "outDir": "./lib",