prepare 3.5.0 release (#56)

Author: LaunchDarklyReleaseBot

docs/typedoc.js

@@ -68,7 +68,7 @@
     "rollup-plugin-uglify": "6.0.4",
     "semver": "^5.5.0",
     "semver-compare": "^1.0.0",
-    "typescript": "^3.7.5"
+    "typescript": "~4.4.4"
   },
   "dependencies": {
     "base64-js": "^1.3.0",