Support for Including Specific Stats Using a Config

[schneiderlin]

There are certain fields that I would like to hide, such as Task Management, Queries, and Media. Perhaps we can allow users to specify what to include or exclude using a JSON config, like this:

{
  "logstatsTitle": "Logseq Graph Stats 📊",
  "disabled": false,
  "exclude": ["Task Management", "Queries", "Media"]
}