Chore: Add issue/pr template and general housekeeping tools and docs (#900)

* Add linting

* Add issue templates and docs

* Add root eslint config and remove tslint

* Autofix lint issues

packages/rrdom/package.json

@@ -7,7 +7,8 @@
     "bundle:es-only": "cross-env ES_ONLY=true rollup --config",
     "check-types": "tsc -noEmit",
     "test": "jest",
-    "prepublish": "npm run bundle"
+    "prepublish": "npm run bundle",
+    "lint": "yarn eslint src/**/*.ts"
   },
   "keywords": [
     "rrweb",
@@ -32,7 +33,10 @@
     "@types/jest": "^27.4.1",
     "@types/nwsapi": "^2.2.2",
     "@types/puppeteer": "^5.4.4",
+    "@typescript-eslint/eslint-plugin": "^5.23.0",
+    "@typescript-eslint/parser": "^5.23.0",
     "compare-versions": "^4.1.3",
+    "eslint": "^8.15.0",
     "jest": "^27.5.1",
     "puppeteer": "^9.1.1",
     "rollup": "^2.56.3",