Allow keymaps configuration

[brpaz]

It would be nice to be able to override default keymaps of the snippet's search view. For example, I want to use arrow keys to navigate in the snippets list.

[acoustep]

Thanks for the feedback! I did explore adding arrow keys as an alternative previously but ran into some issues. I will take another look and see if I can get them working.

Key mappings would be great—I'll have a look into this as well.