Add support for shortcut customization for grammar check

Well, the idea was already very explicit in the title, I don’t like the Shift + F10 shortcut and would like to make it more comfortable for my use, I tried to create a plugin that selects the word I would like to get grammar suggestion and simulate a right-click but without success, so if you can make this something official and customizable, I would appreciate it.

I would like to thank you in advance for the great service that this application provides.