Fields Hints are not hiding after being selected

#### This issue pertains to the following package(s):

- [ ] GraphQL Playground - Electron App
- [ ] GraphQL Playground HTML
- [X] GraphQL Playground
- [ ] GraphQL Playground Express Middleware
- [ ] GraphQL Playground Hapi Middleware
- [ ] GraphQL Playground Koa Middleware
- [ ] GraphQL Playground Lambda Middleware

#### What OS and OS version are you experiencing the issue(s) on?
- Happening on every OS. Run in Windows, Linux, Arch

#### What version of graphql-playground(-electron/-middleware) are you experiencing the issue(s) on?
I am using rust packages
- actix-web = "4.8.0"
- juniper = "0.16.1"
- juniper_actix = "0.6.0"

But it's not only happening in rust It's also happening in nodejs package as well. It is seen that the issue is happening after the recent update of graphql or playground. In nodejs previously it was not happening.

#### What is the expected behavior?
- It should get hidden after being selected

#### What is the actual behavior?
- Tips are staying on the UI after refresh it hides

#### What steps may we take to reproduce the behavior?
- Just write down the query or mutation it will show the tips and once selected it will stay on UI

_Please provide a gif or image of the issue for a quicker response/fix._