[data grid] add validation in useGridApiOptionHandler

[k-rajat19]

doing this will ensure that we are not registering multiple event handlers with the same event name :)

• I have followed (at least) the PR section of the contributing guide.

[romgrk]

Thanks for the work, but I don't think we should merge this :| I don't see a need to add validation code if it's not catching an actual problem.

[k-rajat19]

This will help prevent any future regressions.
Currently, we are not registering multiple event handlers with the same event name anywhere in the codebase but in case we do so somewhere deep in the codebase and forget that we have already registered a handler for that event name, it will prevent that.
Also, we are exporting useGridApiOptionHandler so if users try to do the same it will prevent them too.

these are my Points of view. however, you know better than me, Feel free to close this if you want :)