Make it compatible with React 19

[cpontvieux-systra]

Could it be possible to make it compatible with React 19 please,

For now, here the error I got in React 19 (using 0.3.0-rc0):

Warning: Invalid hook call. Hooks can only be called inside of the body of a function component.
...
LionessProvider LionessProvider.tsx:40
...
Uncaught TypeError: can't access property "useEffect", dispatcher is null
useEffect2 React
    LionessProvider LionessProvider.tsx:40
...