Method appears_in

backend/src/git/client.rs:117–134

(
        &self,
        repo_id: RepoId,
        search: &Search,
        entry: &SearchEntry,
    )

    }

    pub fn appears_in(
        &self,
        repo_id: RepoId,
        search: &Search,
        entry: &SearchEntry,
    ) -> Result<bool> {
        for token in &search.tokens {
            let key = repo_id.index_key(token)?;
            if !key
                .token_index(self, IndexMode::Update)?
                .indexed_on(entry, token)?
            {
                return Ok(false);
            }
        }

        Ok(true)
    }

    // How to handle path visibility?
    fn cycle_exists(