Please support React 19

[edwin-speer]

From the current package.json:

  "peerDependencies": {
    "react": "^17.0.0 || ^18.0.0"
  },

React 19 is out for a while, now. Please add support.

[jtaub]

@JetBrains, what is required for this issue to move forward? Any advice for a new contributor who would like to take a shot at this?