Custom snippet paths should be expanded

[olimorris]

Feature Description

I'm loving the native snippets implementation. I'm choosing to add my own custom snippet location like so:

sources = {
  default = {  "lsp", "path", "snippets", "buffer" },
  providers = {
    snippets = {
      opts = {
        search_paths = { "/Users/Oli/.config/snippets" },
      }
    },
  }
}

However, if I change the path to ~/config/snippets it doesn't work. happy to add this as a PR.

[Saghen]

PR welcome!