Add tsc and eslint to pre-commit (#9131)

lint-staged.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  "*.ts": () => "tsc -p tsconfig.json",
+  "*.{js,ts}": "eslint --fix",
+  "!(/translations)*.{js,ts,json,css,md,html}": "prettier --write",
+};

package.json

@@ -204,7 +204,7 @@
     "gulp-zopfli-green": "^3.0.1",
     "html-minifier": "^4.0.0",
     "husky": "^1.3.1",
-    "lint-staged": "^8.1.5",
+    "lint-staged": "^10.5.4",
     "lit-analyzer": "^1.2.1",
     "lodash.template": "^4.5.0",
     "magic-string": "^0.25.7",
@@ -250,17 +250,6 @@
       "pre-commit": "lint-staged"
     }
   },
-  "lint-staged": {
-    "linters": {
-      "*.{js,ts,json,css,md}": [
-        "prettier --write",
-        "git add"
-      ]
-    },
-    "ignore": [
-      "translations/**"
-    ]
-  },
   "prettier": {
     "trailingComma": "es5",
     "arrowParens": "always"