Add word_type_filter to get_trending_words

[IvanIvanoff]

Changes

• Add project field in the trending words result. It is filled when the word refers to a project.
• Add wordTypeFilter argument accepting one of: PROJECT, NON_PROJECT or ALL. Defaults to ALL if not provided. This allows to filter and return only those words that are a project, or are not project, or just return all.

{
  getTrendingWords(wordTypeFilter: PROEJECT, size: 10, from: "2023-08-02T11:00:00Z", to: "2023-08-02T12:00:00Z", interval: "1h") {
    datetime
    topWords {
      word
      project {
        slug
      }
      score
    }
  }
}

Ticket

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have tried to find clearer solution before commenting hard-to-understand parts of code
• I have added tests that prove my fix is effective or that my feature works